
Honestly no you don’t need to gain weight according to some newer studies. Just get your protein goals in and hit the gym and go to failure like to the point where after 5-10 reps you can’t physically do another rep. Rest 2-5 mins depending on the muscle (isolation exercises, like tricep extension, needing less time than a difficult compound movement, like a hack squat) and do another set. Get plenty of sleep (8-9 for women, 7-8 for men) and take creatine b4 u workout and a simple carb