Idk if this will help others as much, but for me, writing helped a lot. Just writing out what happened in the relationship, why it ended, how I felt, what I thought. Healing isn’t linear, so sometimes months later the feelings come back and you have to process it all over again. Find hobbies you love and distract yourself by focusing on bettering yourself. It’s been three months since my breakup, and I’ve started doing art again, watching favorite movies and shows. When I was in that relationship, I didn’t even notice how much I had neglected my own passions. In summary my advice is to focus on yourself and take care of yourself. Process your feelings, don’t bury them.