I think a good thing to work on is your self esteem. People talk about having a low self esteem like it's a life sentence. Take this opportunity to look into that. You deserve that and I can tell you that there is absolutely nothing sexier, NOTHING, than a confident man. Find out what you can do in that area. Do it for you because you deserve to no longer have poor self esteem.
About the trap with the ow... You did it and now it's over. You were clearly looking for something there and got sucked in. Don't wallow in it. Take that discovery and turn it into a lesson. What do you need? Give that to yourself. You want to be happy and I believe that's unalienable but YOU have to provide it for yourself. Live for you and she will see that. Do it for real though. Not half way.