Just to add one thing no one else has said:

You're wearing a helmet, RIGHT?

Really. Please. You can fall at 0 miles an hour and have a serious brain injury. Don't mean to scare you, but that's $30 you definitely should NOT skimp on, nor EVER get on a bicycle without one.

Hopefully you're already wearing a helmet every ride and didn't need this lecture, but just adding it because no one else has... and because I'm alive and functioning because of a helmet I was wearing on *two* occasions.

and... welcome!!! Have fun!!!