Heya, welcome to the site!
I remember searching through many PMD roleplays myself a while ago, but most were recently started or long dead. Doubt that's gonna happen here anytime soon, though. This place has been up for years, haha. Will be cool to have you around to keep us company while eternity passes us by.
Also, not having roleplayed before should be fine. I for one don't mind, and I don't think the others'll be snooty about it either. Just ask someone for a thread when you've got your character and feel ready to start. I look forward to seeing what kind of character you'll make ^^