Just keep writing! It doesn't have to be good--you can delete it later. It helps to just write through your problems until you find something worth keeping.
The only only only way to beat writer's block is the punch through it. Sure, you may turn out a thousand pages of crap, but that crap is better than the nothing you'd have otherwise and will probably at least give you some idea where you'd want to go.
Writers block is cured by adventure. Drugs are the easiest. (I include alcohol, of course). They will lead to bad women and other bad decisions, though bad women can be found without the blurred haze of altered states. Human folly, your own or observed from others, will lead the pen to adventure. "Follow the money" if you are an investigator. A writer will "follow the folly."
dude the best way i found to overcome writers block is to write the most ridiculous, outrageous thing you can think of. for example, a monkey is eating a cupcake and gets blown up because a rhino had gas. outragous...yes. ridiculous...yes. guess wat u have a comic strip idea.