ok im not fat but im not skinny and i want my chest to pop out and be formed and ive always been kinda mucular im only 16 and i want to form my mucles i waant help with 2 things im like 5'8 and my pops says i want grow if i keep doing excersise but i do all my excersise with atleast 15 pounds i do 3 reps of 10 sets for evreything will it stunt my growth and also i want to know if doing more reps will cut more fat or will it make me gain more mucsle cuase i have muscle but with a bit of fat on the top and i want to lose that plz help anyone plz