It's not easy being in divorcedom and I think we all pretty much know the feeling to variable degrees. Could you fill us in a little bit about why you are divorced? What things played the biggest role in the demise of your marriage? These are places to make a change.
I think you got some excellent advice on the other thread. I would like to reiterate what was said. The first step for you is to focus on yourself. When you are in a state where you "need" your XW and focus only on how much you want her back, you are not in the position to convince her you're an attractive alternative to all the other fish in the sea. Would you want someone that needed you in order to be happy? Someone that wasn't complete and happy on their own?
So put your focus on improving yourself. Make yourself as attractive as possible to your XW. Get a life dude. Take advantage of this single life to do some things for yourself that you perhaps put on hold.
Make yourself a list of goals. Keep the list primarily focused on improvements you would like to see for yourself. If that coincides with something that your XW didn't like then that's a good start.
Perhaps you should think about seeing a counselor or getting on some anti-depressants. You sound really low. You have got to quit focusing on your misery and look at the things that are good in your life. Being 29 is much to young to start thinking that you'll never love again or that this is the end of the world.
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt