Prepare for the long haul. It's important to know that you're not going to start doing deadlifts one day and wake up the next day bulked up like the Hulkster. Bodybuilding takes a long time for you to see the kind of results you're hoping for, but with the proper time and dedication, you will start seeing those results. This isn't a field for weekenders who love action movies, it's a 24-7 lifestyle. Think you got what it takes? Get training.
A word about dietary supplements: They are big business. Some work, some don't, some affect performance negatively, some are hazardous and some are illegal and will get you banned in international sport. In fact, many are a waste of money and a con. Protein powder supplements, particularly whey-based supplements, do have a role to play for busy weight trainers. But cheaper solutions may be available.

Reverse crunch: Lie flat on the floor with your lower back pressed to the ground. Put your hands beside your head or extend them out flat to your sides—whatever feels most comfortable. Crossing your feet at the ankles, lift your feet off the ground to the point where your knees create a 90-degree angle. Once in this position, press your lower back on the floor as you contract your abdominal muscles. Your hips will slightly rotate, and your legs will reach toward the ceiling with each contraction. Exhale as you contract, and inhale as you return to the starting position.
One of the most misunderstood areas for new bodybuilders is nutrition. I talk to guys all the time that have no idea of their daily calorie intake, their daily protein intake, their carbohydrate intake. They have no idea of what types of foods they should be eating, or when they should be eating them. They don't know what supplements do what and what they should using. Let me refer readers to some of my other articles that detail these areas.
Nutrition is important but I find that most people over-obsess about their diets. I hear people fretting over stuff like; Should I eat a chicken breast or a fillet of salmon? A handful of almonds, or a teaspoon of peanut butter? Broccoli, or spinach? brown rice, or yams? A half cup of yogurt, or a half cup of cottage cheese? High carb, or low carb? As much widespread confusion that exists regarding diets that should be followed in order to burn fat, the premise of the whole issue is actually very simple. Regardless of what you eat, as long as you take in fewer calories than you need in order to meet metabolic and physical activity energy requirements, you will lose fat. Some people have made great progress in fat loss simply by taking my advice and eating what they normally eat, but just eat 1/3 less of everything with the exception of green vegetables which are actually negative calorie food items that you can eat as much as you want off. Don’t complicate your nutrition and make it more difficult than it needs to be. Fats don’t make you fat, and carbohydrates don’t make you fat. Calories consumed beyond the body’s maintenance and growth needs make you fat.

Competing in a bodybuilding contest can be a source of immense physiological and emotional stress. As one of the most demanding activities one can engage in, it requires extreme control, discipline, and motivation to even be competitive in the sport. To recover from this stress and bring the body back into balance, attention to proper nutrition and supplementation is critical.
Also, make sure to bring about sufficient variety in your routine once every 2 months or so. These are some generic rules for starters. If you can follow them you should be on the right track. By that time you would have had enough experience or made enough friends in body building who knows the craft better than someone who is not into it but has only a general idea of the proceedings.

The main difference between Advanced Training and Intermediate Training is that in Advanced Training, you'll need to change your program every 3 weeks to keep the gains coming. Therefore, you will need to incorporate periodization, which is the manipulation of sets, repetitions and rest in between sets. If competition is your goal, then you may need to increase your weight training days to 6 in order to accommodate a larger number of exercises. Some options on what can be done in terms of a more advanced routine are presented below:
If you want to improve your shoulder width, prioritize this workout, swapping it for your regular shoulder sessions every third deltoid workout. Or, depending on present development, do it every other workout as needed. Use the sequence of exercises prescribed here: Their purpose is for progressive prioritization, from heavy weight for strength and muscle-group size to higher reps for isolated muscle size and deltoid striations that draw the onlooker’s eye to those points located at the maximum width of the shoulder girdle.
Assess your skills. Consider hiring a fitness trainer to work with you at a gym or at your home if you're a beginner. It's difficult to learn on your own how to lift weights from a book or even a video. You can do it, but the hands-on approach with a trainer is superior. You don't need to use the trainer forever, either. You can start by having the trainer design a plan for you and show you how to do it, and then depending on your skill, you might only need a couple of sessions and then a periodic follow-up with the trainer, say, once every one to two months. Learning how to lift weights properly will give you the confidence you need to lift on your own and get stronger and stronger.
In terms of actual gains, depending on the factors listed above, maybe 12-15 lbs. of muscle, 15 lbs. being on the high end. This assumes you are natural, by the way. Drugs are a personal choice, but my experience is as a natural bodybuilder, so I'm not going to pretend to know a lot about how steroids affect your gains. Having said that, it makes sense to at least be aware of what they are and what they do, purely from a knowledge standpoint. There are enough knowledge resources available on line that you can learn about them if you choose to pursue that option.
When you start resistance training, most of your initial increase in strength is due to a phenomenon called neural adaptation. This means that the nerves servicing the muscles change their behaviour. The nerves are thought to fire more frequently (prompting increased muscle contraction) and more motor units are recruited to perform the contraction (a motor unit is the nerve cell and its associated muscle fibres). This means you become stronger, but the muscles remain the same size – you’ve hit the plateau.
Multiply your body-weight in pounds by 10 to get the minimum number of calories you need each day, advises champion female bodybuilder Jamie Eason. You then need to add 300 to this if you have a sedentary lifestyle, 500 if you're moderately active or 800 if you're highly active. Aim to get your calories from nutrient-dense foods such as lean meat and fish, low-fat dairy products, beans, fruits, vegetables, whole-grains, nuts and seeds. You may need to play around with your calorie intake slightly until you find the perfect balance.
Including a small amount of higher sugar and/or higher fat food here and there (I usually try to refrain from using the term “cheat meals” as it wrongly implies that you’re doing something outside the rules) is not going to negatively affect your muscle building or fat burning progress, and it will make your overall eating plan much more enjoyable while still delivering the same results.
There is no greater teacher in the universe than yourself. The mistakes you make are your lessons. I would like to share some of the mistakes I made during my intial days/years. I started going to the gym during my first year in college. It was a crappy gym with very few equipment. They had a few dumbbells and and a couple of barbells. The worst part wasthere was no trainer. Yes, you heard it right. A gym filled with many first timers and beginners like myself and no trainer. This was enough to give you a list of mistakes I made as a beginner. Let me try to recollect and list down a few:
Instead, start with heavier weights for low-to-moderate reps. Done early in your workouts, when fatigue hasn't yet set in, this protocol can induce muscle growth via both mechanical tension and muscle damage. Those mechanisms are far less stimulated when using lighter weights than when training for a muscle pump. However, higher reps are superior for driving fluids into the muscle, which increases metabolic stress. All three mechanisms are believed to contribute to muscle growth.

If you’re constantly depriving yourself of the foods you enjoy most, there’s a much greater chance that you’ll simply become discouraged and quit. Figure out what you need in terms of overall daily calories and macronutrients (the level of detail that you apply here is dependent on your individual goals and situation), and then allocate a small percentage of that to allow for the foods you crave most.

In either phase, don’t exceed 1 gram per pound of body weight of protein (2.2 grams/kilogram). A little more probably won’t hurt a healthy person, but chances are, based on the science of protein requirements for athletes, it won’t help either. It will only cost you in expensive supplements or food. Any hint of kidney disease and you would need to be cautious about excessive protein intake. Consult your doctor for advice if this applies.