do not focus on eating fatty foods, make sure you get alot of protein

Id get some protein shake mix from like costco, like 40 bucks for a big thing

Along with the protein shake id get some creatine if your not eating alot of red meat

Keep a consistent schedule for yer workouts and when you eat, and stay hydrated, if are dedicated I could dig up some routines I used back in high school fer football season. good luck


EDIT: Take multi vitamins and learn proper weight lifting technique, always see too many people in the gym using a poor technique. Find someone in yer gym that looks like they know what they are doing and ask fer advice