Chair Flying
The best advice I can give is to do whats called "chair flying". ie the best flight simulator is your arm chair at home.
Basically, sit in a chair and useful if you have a cockpit panel poster or photo in front of you or on a wall. Then sit there and actually go through a flight. Verbalise it and do touch drills on checks. Even more, get a mate to sit along side you and help with RT or spot mistakes etc...
Dont think of this as a 'stupid' thing to do. Or something youre too cool for. I think every fast jet pilot has done this in their training - think how big their egos are!