Dude, I trained 5-6 days a week all the way through 2.5 years of military service. More than 4 days a week will not kill you unless you are in the small minority. Even then, work capacity can be built up. Your body is not static. HOWEVER, don't end up doing worthless shit in the gym for no good reason. Have a proper plan for progression in the big lifts and be selective about how you allocate overall volume.