Hey guys, I'm 22 y.o. men 5'8" going to gym again after years of break. Started from November 1st. In last 50 days, after working out 5-6 days a week, I've only gained 3kgs from 52kgs to 55.5kg. So I'm thinking rather than spending 2-2.5 hours on the gym using all the machines I'm just going to...