I agree with Lexie wholeheartedly. But not being a leaper myself, I'd also like to suggest that you could approach your situation as something from which you need to entangle yourself. Letting go and leaping imply that the changes have to be done all at once when they don't necessarily.
If you could do one thing every day to work on your recovery (spend time on SR, go to Al Anon, read a book on codependency, etc), you would quickly begin to untangle yourself from this man emotionally, and start to feel confident that there IS a way out of the madness.
Take a baby step ever day toward that place from which you will finally be able to let go.