I've been gaining strength and size with the split/diet I'm currently on, do I still need to switch it up? I like a 5 day split because I know the more time I'm busting my ass in the gym the better (I've heard it's incredibly hard to overtrain yourself).
Over the past 12 weeks I've gone from 125-135lbs and lifts have gone from
Deadlift 180x5 to 220x5
Squat 155x5 to 190x5
Bench 130x5 to 155x5
Military press 90x5 to 105x5
I make sure to start each day with one of these lifts ending in a max effort for 5 reps. I've been thinking trying a new split that separates one leg day into a quad focused day (squats, lunges) and another that's hamstring focused (SLdeadlifts, leg curls). The other 3 days would be back, chest, and shoulders/traps.