Welcome to the guild, Meta! 

As for tips, I would check the Off Topic: Roleplaying Discussion board. Otherwise, throw your idea into an Interest Check under whatever manner of RP you'd like (Free, Casual, Advanced, Arena, World, or 1x1) and see how it goes. It's always in your best interests to get out there, poke a few live stories, and find something that suits you. 

Good luck and have fun!