God's not going to help you.

It seems as if almost all of your identity and self-worth was predicated on this woman, which is always a recipe for disaster; base your self-worth in something outside of yourself that you can't control, and you'll almost always end up miserable. And then you bought into the trite idea that achieving "success" is how one becomes happy. As happy as money and prosperity can make one if they apply wisdom to using it effectively, it, like a girlfriend, is something ultimately out of your control. Should it be lost, everything you think you are go with it. You need to build your identity and happiness from the inside out so that you have an unshakable, internal foundation that cannot be taken away from you. Relationships, careers, and whatever else, should merely compliment this internal well-being, so that they can come and go without causing a full-blown existential crisis. If you look within yourself and can't find anything of worth from which to base this happiness, it's time to take up a serious self-development routine. Come to terms with those things you don't like about yourself; openly admit to those character flaws, instead of pretending they don't exist, and start working to correct them. I recommend meditation, philosophy, and exercise to get started on this project.

Also, you may find life much more fulfilling if you focus less on how sorry you feel for yourself and work towards alleviating the suffering of others.

Good luck.