It takes two people to make a relationship work, but only one to break it up, and as long as she’s adamant that she doesn’t want to be together any more, there’s not a lot you can do to get her back right now. A five year relationship is plenty long enough to get to know someone. It sounds like you spent the last 11 months ignoring her and she decided that after five years together, and the last of those five years going in a direction that wasn’t good for her, she’d had enough. Eleven months is a long time to ignore her, and it sounds like you would have continued ignoring her if she hadn’t broken up with you. If you’re really with Ms. Right, you won’t want to ignore her — and certainly not for eleven months! Consider that your behavior was a subconscious way for you to get out of a relationship that may not have been working for you!
I think it’s time for you decide what you learned from the relationship and how you want to conduct yourself next time around. For now, you should get over the break up and move on.