I was in the exact same situation as you just under 3 months ago having to end things with my first love because he treated me appallingly so I know right now it feels like it’ll never get better, but it will! For me, in the immediate aftermath I deactivated Facebook and limited the time I spent on other social media so I could focus on myself and not compare my life to other people’s, and honestly I really needed that. I also went a lot of long walks listening to music or podcasts that make me laugh to try to clear my head and take my mind off it. If you have anyone close enough to talk to about it, that really helped me as well because it showed me how much people really do care about me even though I didn’t believe it before. Then when I came back on Facebook, I muted him on everything so I couldn’t see what he was posting, but I kept looking anyway so eventually I had to delete him on everything because he continued to be toxic, so if you haven’t done that, as hard as it may be to finally let go I’d really recommend it. Let yourself be sad for as long as you need to, and remember there’s no time limit to healing. Just focus on yourself and you’ll notice with time it’ll get easier. If you’re like me, you’ll keep thinking about the good times and wish it didn’t have to end this way, but try to keep reminding yourself why it ended and that you deserve better. Just take it a day at a time and be kind to yourself ❤️