New player looking to learn

I'm looking to join an online campaign. I have a character sheet created already but I'm not too sure what else I'm supposed to add to it. I know it'll be a burden teaching someone new if you're looking to start an awesome campaign but I would love to join someone's group and learn

I am a current city law enforcement officer (not close to retirement at all lol 25 more years), so my schedule stays pretty consistent, sadly I cant join the session today but if you're available next Saturday I would love to hop in and learn