Yup, [s]perfect[/s] practice makes perfect, after all. I'd personally recommend joining someone else's RP to get in the motions of it, but making an RP works just as well, if not better due to the GM practice.

...Speaking of which, I might be able to help you with ideas if you wanna go the latter route. Maybe. Possibly. (EDIT:) Though if you do that it'd probably be better through PMs, since I don't think clogging the Interest Check forum without an actual idea for an RP is recommendable.