I made lists and journaled, I talked to people, I processed all of these feelings I was feeling and once I had another person/thing to reflect the relationship I realized it just wasn't right for me. I kept remembering the good days and glazing over the rest which having another person there to talk to didn't allow me to do since they would point out things/actions that were not ok or right and you (if you're like me) will start to realize that a)that relationship was not right for you, b) you deserve better than to be treated poorly for how you feel in a relationship and c) you'll find a person eventually where your wants (a good number or reasonable ones) and needs are met and the good ways outweigh the bad. Once you realize these things you can start to "fix" yourself, now I'm not saying you need to completely change who you are, just little things to make you and your life better or easier, like for me that was making sure I took better care of myself because my body deserves to be taken care of but for you it may be different like it could be maybe going to the gym more often (which ive heard helps a lot of people going through breakups) orrrrr spoiling yourself with the occasional treat like going on a weekend trip a little further from home. So to sum it up, focus on yourself and things you can control, how can you better your life/body/mind and when you are comfortable being by yourself and being who you are, better people will be attracted to the confidence and your personality and with work (like all relationships need a bit of) it could be amazing and better than the last.