Hello and welcome to Iwaku!
Your name makes me think of the Dr. Seuss book...
"One fish, two fish..."
On that note, I'm Kitti! Good to meet you.
You should take a look around our lovely site and find the things here that interest you but for roleplaying, I have some awesome links to help you find stuff fast!
This is where you can sign up for the roleplays found in Modern, Scifi, Fantasy, and sometimes Mature. Generally, they will have you post a character sheet in their thread, a new sheet for each roleplay! You can also start signups for a roleplay of your own here.
This is where you can find jump in games, which typically have no sign up thread. You just start posting!
If you need any help, please feel free to ask!