I overcame one of my hardest by doing more for myself, by myself, than I would have with her around. I gave up a lot to be with her, and after the break up, I decided to embrace the circumstances and strive for success despite her. I did it to prove that my life would have ended up worse with her than it turned out to be without her.
Plot twist. Going YOLO for this reason is exactly what starts the chain of events leading to your expiration.