It seems like many of the posts on this "Surviving" board are folks who are at peace or even happier post D. I'm not there...yet.
I wasn't always happier and at peace - it's a process that takes time and you will eventually get there! Continue to give it the patience and time that you are doing now. It's good that you recognize the situation you are in and that you are jumping into situations such as dating before you are ready.
The holidays are really, really difficult for people - especially those going through the separation, divorce or even post divorce. Try to stay involved and don't withdraw. Is there some places you could volunteer at to keep you busy and also end up meeting some new friends? Just an idea.