It sounds like you can fly in spite of yourself.

It's one thing to be able to control an airplane, but it's another to know what you are doing - in other words, you may be able to make the plane turn, but do you understand the myriad of areodynamic events that are taking place to make that turn?

I would suggest getting on a buddy box with a qualified instructor for a few flights. More than likely you have picked up a LOT of bad habits which he can point out to you. Once you know what you're doing wrong, you can work on flying correctly and greatly reducing your chance of crashing