Follow these tips and start progressing today!
Training
Start by working on the basic movements: Dips, Pull-ups, Sit-ups, Squats, Pistols etc. Always vary in the exercise you do each training, so your body is constantly subjected to new stimuli. When you've learned the basic moves, adapt them for increased resistance and difficulty. For example, instead of regular pull-ups you could do L-shaped pull-ups.
Nutrition
Calisthenics training decreases the percentage of body fat and helps increase strength and definition of the muscles. The best diet is as clean and varied as possible. Stay away from sugars and processed foots, and make sure to incorporate a large variety of fruits, vegetables and nuts into your diet.
Supplementation
Calisthenics training can be truly intensive and exhausting. Taking amino acids intra-workout can help delay fatigue and impede muscle mass breakdown. Pay special attention to the joints. Taking Omega-3 can help keep inflammation away.