I was a little like you in picking up quickly. I first flew an older Aerostar 60 and it was fast. I thought it was too fast to judge throttle cut before landing, etc. I learned mostly on a high wing trainer like everyone is suggesting...with good reason. My second plane was a very fast low wing, tail dragger.

Maybe, just maybe you could get by on a Sig Somethin Extra. I know some people will hoot at this, but it is a very good slow lander with excellent characteristics. It is docile enough on low rates, and totally crazy on high rate deflections. They make an ARF version if you don't build, but the kit builds very fast. Some people build both wings in an evening. Anyway, we fly quite a few of these at the field. It would need a modified main gear arrangement with blocks and nylon bolts to survive the beginners landings, bounces, etc. I did that to mine. They will hover fine if you prop it right and keep it very light. Mine was built with oversized rudder, counter balances on the elevators, and some other mods.

A friend had a UCD as his 4th plane, I think. I was not impressed by it at all. Massive, heavy, and lightly build where it needed strength. His tail came off on a landing approach one day. The whole tail section just tore off! I just didn't like the plane from a quality standpoint. It won't take a beginner landing. And, you are going to make quite a few of those eventually. You may make some great ones at first, but the beginner will come out at some point and the UCD won't take that without breaking.

If you do get a trainer, learn on that. Then, when you are getting pretty good with it, try and fly the wings off of it. You will have fun. I saw a guy do rolling circles, harriers, and perfect stall turns with a Sig LT-40 trainer. You will be surprised what they can do, and look good doing it too.