What is your best break up tip?

Going through a bad break, it’s been a week. I deleted, blocked him and threw everything away. My only agony are the memories and thinking about him. I want to move on. I don’t have any family, I didn’t only lose love, I lost a friend and family, since his family became part of me. I feel so lonely and broken. I wake up and I don’t know what to do with my life. I’ve been a zombie just going to work and smoking weed until I pass out. Don’t know what to do...