I haven't been reading you for a long time, but I've been reading you long enough to feel like I can say this to you...
I really think you need to take some time to work on YOU. You write day after day about your feelings about Nancy and being depressed over a lack of response on Tinder. I think there are a lot of unresolved issues there that you need to take some time to heal before you try to date. You still have so much bitterness and resentment toward her... You've also said you don't like how you look, either. So maybe take a couple of months off from trying to date, and use that time to work on healing the bitterness and maybe give yourself a makeover with a new haircut or something. I have had to do that a couple of times.