Girlfriend left, considering suicide

The title says it pretty much. I’m done. I don’t know if I want to keep going and how I’m supposed to. About a year ago I was allowed to meet the light of my life. She fell in love with me and we got together two months after. Long story short, I fucked up, she decided to leave me and now I have no one anymore. We spent every minute together, fell asleep on the phone every single nighty. And now there’s nothing. Just a gaping nothingness. I know this is stupid and the most generic story ever. Everyone else in here has probably got way more serious problems. But I truly don’t know who I’m still fighting for. We were so incredibly close. And now there’s nobody there for me, ready to cheer me up. Going from daily talks of 13 hours to straight up nothing is just pain.