The tide comes in, the tide goes out. The end of any relationship is such a mixed time, the natural human tendency is to go around in circles and replay conversations etc etc, all you’ll be doing is miss-remembering things and beating yourself up. The best advice I can offer is to take the energy you were putting into the relationship and try and find other things, hobbies, people, jobs to put your energy into, you’ll be rewarded both in soul and in pocket. Try to say “yes” to more things, and above all, make sure you’ve taken some learning from the whole experience. My learning from a hard break up was that I didn’t actually want to go out with the “female version of me”, but rather someone who is more different and interesting (but with the same values). I have a house, 2 kids, 2 cats, and a smoking hot (superbly interesting) wife, who I love and adore and who also loves me back. Sure I still think about the hard fall, but it doesn’t hurt anymore, because I am surrounded by a place and people who make me far happier than she ever could. Hang in there amigo, the hurt will fade.