30F struggling to prioritize life things

I got out of an emotionally, verbally and physically abusive relationship of 2 years. He was good 80% of the time. The rest was bad. It’s been 6 months since it ended. He’s in a happy new relationship for the last 2 months. I’m trying to date but I’m not meeting anyone interesting. I spent some time introspecting why the relationship failed, and have learnt a few good lessons. Context: I’m fairly active in sports, look decent, work in big tech, independent. I’m also trying to interview and change jobs but I’m not able to stay disciplined/concentrate. I’ve been constantly re-thinking if I left a nice guy who had flaws, and what if I never meet anyone. I’m not able to concentrate properly on anything in life, and somehow feel like I need to sort out this part of my life before I tackle something else but that’s not happening. I’m trying my best to be positive but unfortunately I’m spending several hours a day ruminating about my failed relationship. I also got very bogged down during the relationship and didn’t do well in my current job. It was super hard to just keep my sanity! TLDR: got out of abusive (narcissistic ) relationship, he found someone new, I’m worried about my progress in life.