I used to train about 20-23 sets per body part (way too much).
Now a typical day looks like this (shoulders & triceps):
warmup 1 set
shoulder press 3 sets
reverse fly's supersetted with front plate raises 3 sets
upright rows supersetted with side raises 3 sets
Triceps
skullcrushers 3 sets
straight bar push down 3 sets
seated dips 3 sets
rope pull downs 3 sets
I am not getting good growth anymore, while my diet continues to get cleaner with more cals and protein. Possibly overtraining?