Missouri Star Quilt company has lots of videos about quilting. If you haven't looked at that site, you would learn a lot there. If you are looking for an easy pattern to start with, try Warm Wishes, which is free online. If I were you, I'd sign up for the classes but go ahead and start a quilt now. I'd make a small quilt first. I have only been quilting four years, but I had sewn all my life. If you love it half as much as I do, you are in for a lot of fun!
You can learn a lot about quilting by googling too. Plus the folks here will answer any question, at any time of the day. I couldn't have changed the blade in my rotary cutter without help from this group.
But the best advice I can give is to not "stew" about decisions too long. Just select fabric you like and go with it. (I used to get really really upset when selecting fabric. I finally figured out that if I made a wrong decision, well, it would probably look okay when I finished, and it usually does!) Welcome to the hobby!
Dina