How to find something to live for

29M and married exactly 3 years and 4 months after having been together for 9 years. Is there anyone else here who is a depressive and suicidal that managed to find something to live for? How did you do it?

I sacrificed everything for my relationship. Literally everything, career, education, you name it, I threw it on the altar and sent it to Cthulhu. And now, no relationship, I have nothing left. I have no reason to go on, and yet I'm too stubborn to die.