So, I would like this thread to also be about generalized advice, but I would like to recieve some advice specific to my own situation as well.

I was really low value, received horrible treatment when I tried to engage romantically and especially sexually. Insulted, laughed at, ghosted, passed over for other guys, cheated on etc

Decided to self improve a lot. Lost a ton of weight, got some hobbies, etc. Felt a lot more confident. There were definitely still women cold to me, but overall I could definitely feel a change in the way I was being treated.

So, this actually had the opposite effect of what some people would think would happen. I started getting really upset at the fact that women were treating me differently now, and I never forgot how they treated me before. This made me want to get revenge on women. I've seen how they treated me when they had the upper hand, so why would I have mercy now that I can call some shots? This lead to me leading women on and using them for sex, and being really cruel to them after. I wanted them to feel the same way they made me feel. Worthless. I've put in all this work to become attractive to women, why should I play by their rules and be graceful when they treated me like scum?

That's the way I feel inside at least, but I know that all this hate and anger isnt good for me, I want to move on from this phase in my life and be happy again. What advice can you give me? Especially guys who have been through similar feelings.