Welcome!
It's cool that you're trying new stuff, forums and website building! It takes time to get really good at this stuff, and that's ok! Don't get discouraged if you don't know how to do something right away when you're making something for your site. As for forums, take a peek around and see what discussions you can jump into. Put some thought into what you post, share your opinions, learn something from others, and make some friends! The slower pace (unless it's super active!) of forums can be really awesome, because it feels like hanging out on a lazy Sunday, to me at least.
See you around!