Abdicate.
No, actually, I'd set up a bunch of pointless rules that no one can keep, then curse humanity for being the way I made them, then impregnate an innocent young girl with my son so that I can horribly torture and kill him for no particular reason except that that's how I decided to set it up, then bring him back to life and say that everyone who doesn't believe it is going to Hell, even people in the future who weren't there, even though I didn't provide any convincing proof that it ever happened. Oh yeah, and I'd be sure to tell everyone I'm perfect and infallible and that I should be mindlessly obeyed no matter how crazy my instructions are. And I'd tell my followers that all you other gods are just a bunch of fakers who don't even exist but are nevertheless evil and demonic. Yep, sounds good. Oh, wait, I think it's been done already. Damn!