I'm 16, i do 295 push-ups (not in a row) every other day, and i eat a lot of diary but stay in a cal. budget of 2200. will i gain muscle?

Teen body building: All exercise is good for your body, when done correctly and in moderation. Push ups will tone pecs and triceps but not much else. Add pull-ups, sit-ups, leg lifts to tone other muscle groups. Ask a professional trainer to show you correct lifting form prior to weight lifting. Eat a BALANCED diet, not just milk and cheese. Lean meats (fish, chicken breast) and eggs are great protein sources.