It sounds like you love this horse. If you want to keep her as a companion that's great....but if you want to RIDE....its going to take a lot training. And sometiems you just don't have the skill/patience/time/guts required to take it all on. If you feel you can't handle it...try maybe getting a trainer. IF not....get a quieter horse, something YOU can handle and WANT to handle. I know the choice is hard. But make sure you find a good good home, and itll make it easier....not a lot....but a little.
And what state are you located in?
If you're near NJ maybe I could help you