hey there, this is my first post. i was just searching around and i found this website. but anyways, heres my question. i seem to be having some trouble gaining mass. ive been working out for about 4 months, and my strength has increased, but my size generally hasnt(biceps, chest, shoulders) i try to get to the gym 3 times a week and this is my workout
im 15 and been going to the gym for about 4 months, what can i do to try to build mass?