If you're finding everything a bit overwhelming and aren't sure where to start, I recommend hitting up the Community 101 Guide to help get you settled in with the setup here. It's also got advice on how to get started RPing on Iwaku, too.
Of course if you've got any other questions and concerns feel free to ask away. It's what I'm here for, after all.
Check that awesome guide Sir Grumpy posted! And if you can't find whatever it is you are looking for, then ask someone : ) We have a great community that is always willing to help!