now my experience in production is getting to 10 or 12 tutorials of a 30+ tutorial book on using an MPC so i kind of know what you mean. but i think one good thing i read somewhere before that either tomy or jonnyb posted up, dont go in thinking your gonna create a smash hit on the first go. start small and take baby steps, maybe first time just learn how to create a beat or bassline. once thats done be happy for that session, and maybe spend next hour just farking around. then the next time back start with learning something new again. once you get that down pat. spend an hour messing about using the two things you know. and so on.