Hey, welcome to the Hobie way of life! If you have the right attitude, you are going to love it. Don't be intimidated. What's the worst that can happen on an inland lake? (Wearing your pfd). The thing is to have fun and just keep your wits about you.
I'll be 60 this year and solo my H16 all the time. I trailered it up to Necedah and sailed on Lake Pettenwell? for a weekend once. The biggest concern I had was the motor boats (and that one spot where electrical wires go over the middle of the lake - they were plenty high to get under but watch out for that kind of thing when stepping the mast).
My only advice is to take it at your pace. We all learn by doing, not by being told what to do. There are a million things people can tell you about it, but it all becomes muscle memory as you get comfortable. Don't go out and try to duplicate all the adrenaline videos right away. I exercise discretion on the conditions I am willing to tackle. You can depower the boat and keep things reasonable unless the wind gets well past 15. Then try little things and expand the envelope bit by bit. Learn the techniques to dump sail and turn upwind to stay upright when gusts hit. You probably already know that. It's not nearly as tippy as a sunfish. You'll get the hang real quick.
If you want quick and intensive learning, the best way to learn is racing. Maybe you can crew for somebody at one of these events:
http://crawsailing.net/regattasIf you are down in the Chicago area when the water warms up you can pm me