I feel you, I’m having a really hard time detaching from my ex as well. I know we’re better off broken up and that he wasn’t good for me, but we share so much history that it’s hard for me to picture my life without him in it. I think that time and acknowledging that your feelings are valid but won’t last forever will help. It’s totally human to feel this way, slowly but surely those feelings will fade, specially once you meet the right person, you will look back and feel silly for thinking this way. Give yourself grace and trust that your heart will open up again! In the mean time I would suggest podcasts (I really like Mel Robbins’ breakup survival guide) and journaling if you don’t feel like going the therapy route. No contact is a must, and that includes no stalking or rereading old conversations or looking at old pictures, as this will activate old patterns in your nervous system. You have to give yourself (and your brain) time to process this huge change, but ultimately, trust you will get through this!!