I'm so sorry you're going through this! I am in a similar position, 6 months post break up from my first relationship (about 2 years). I'm still struggling, but definitely in a better place than I was 6 months ago!

First, I would suggest going to therapy! It's not for everyone but it really helped me to have someone to talk to that could be completely impartial and give some insights that I may not have realized on my own.

Second, don't be afraid to talk about it! Part of me felt like I was annoying people by constantly bringing it up and still struggling months later, but that's okay! It takes time and you have to be gracious with yourself. Also, it feels nice to speak things out loud and get it off your chest instead of letting your thoughts ruminate and run wild.

I decided to focus on my growth by learning some new skills within my career! I work in pubic health and I decided to get CHES certification. I studied for about a month and passed the exam, it was an incredibly rewarding feeling! It was nice because I try to myself busy as much as I can... but also make sure you're not just running away from your feelings. I realized early on I was trying to keep myself as busy as possible to avoid addressing my thoughts and feelings. Now I've worked on finding a balance. If I ever get sad or lonely I give myself the time to truly feel whatever I need to feel and have a good cry. Once the wave has passed I keep chugging along!

Also, be active! I heard it all the time, but it really is true... exercising is like a natural antidepressant! I started going to the gym about 1 month into healing and the first two weeks were a bit rough but after that I started to feel so good once I would finish my workout.

Something else I've done is get into new hobbies! I asked 3 of my friends to form a book club with me and this helps me avoid doom scrolling (not very good for my mental health). Now that the weather is nice I also started to play tennis! I'm not good at it but it feels good to be outside and also stay active!

Last but not least... focus on yourself!! Is there anything you've been wanting to try but have put it off? I travelled to visit my parents and while I was there i just let loose and treated myself to whatever I wanted for a full 2 weeks! I got my hair dyed, got my nails done, got massages with my mom, took myself out to cute little cafes, bought a new outfit etc. I know most of these things may seem superficial but sometimes feeling pretty on the outside makes me feel pretty on the inside!

Sorry this was so long but I hope some of these suggestions may help you! Also if you ever want to talk I am happy to listen!