it is best to start off learning to customise scripts, the way i started was experimenting with different variables to see what did what. But webmonkey does have some of the best tutorials you can find. You have to start basic, so you may not get to being able to do complex stuff for a month or so... but if you jump in at the deep end you will fail miserable and that will severely deter you.
Start simple, in scripts the simple things normally have the biggest effects (unless you go for all out customisation.