Two things you can do. Lift heavier, or lift more. Whatever you do, don't do it if you're not making progress. Doing the same workout week after week won't give you any gains. Once you plateau, try something new. There are countless routines out there. Anything that's different from what you're doing now will probably give you gains, and if not, try something different.
I'd suggest doing more sets of your compound movements for a couple weeks (bench, incline, dips. maybe 6-8 sets), then more sets of some isolation for a couple weeks, followed by a couple weeks heavier, then a couple weeks heavier with different lifts.
Try doing that same workout twice a week, or even three times a week for a week. If I feel a certain body part is lagging, I'll hit it two or three times, or if it's really lagging, I'll hit it every session. There for a while my chin was weak, so I hit it every session for several months, now it's
one of my strongest points.
My point is, don't keep doing the same thing. Personally I plan 4 weeks out what I'm going to do, so it's never the same. Oh, and I read just about everything I can on training, and different methods (t-nation is a great place for that, just don't listen to 90% of their supplement suggestions). Periodization is the key, lots of info on it.
Or just pump yourself full of AAS, that seems to work for a lot of people.
Good luck!
Can't develop chest
