Welcome!

I guess the only advice I can give at the moment as far as the forum itself goes, is don't be afraid to reach out to people. If you're looking for a group roleplay to join, you can see the GM (as Broken mentioned above) listed in the RP threads and with a banner on their posts in that thread. The RP threads have a status you can see if they are currently accepting new players, it will read "apply" or "jump-in." If you're looking to just write one on one with a partner, well the 1x1 section is always active. "Interest check" sections are where you can go to find the most recent ideas people have and see if any appeal to you.

Anyway, hope you find what you're looking for!