where are you doing your training now? I echo what alex90 said about good sleep and booze. Other than that, get yourself an account in airquiz.com, the thing about theoretical knowledge is - you have to exercise it otherwise it's gone really quickly.
As for the practical flying bits, practice makes perfect, you need to commit! There's a really cheap full motion sim down at EINC, swing by one day and do a couple of circuits in it - it will allow your instructor to pause and explain you bits and pieces as you go. I think I did some 3 sessions in it, money well spent