Help

I have a lot stress factors weighing in me, and I've already been in the midst of an OCD flare up so I'm struggling pretty hard right now. My brain is digging so deep to think of anything bad or gross I did when I was younger and I don't know how to handle it. I want to tell it all to my gf but I don't want her to look at me different over weird thoughts when I was younger, but my brain is telling me I'm hiding it and I'm a horrible person. I don't know what to do, I haven't spiraled like this in a long time and I can't get out of my own head going deeper into past thoughts and memories and actions I'm deeply ashamed of.

Around a month ago I got out of an almost 2 year relationship. In that time I met someone that I ended up developing a crush on and today we decided to start dating. Since earlier today, I’ve had a lot of intrusive thoughts about a variety of things, the two biggest being if I actually like this person and the if it’s too soon for me to be back in a relationship. I know I like this person and we have amazing chemistry I just want some advice on the situation.

I’m confused. I think I’ve gotten progressively more boy crazy and more of a hopeless romantic, but I’ve completely manipulated myself into thinking that boys just don’t like me and I think it’s a fact. In the past, I was confused and lost on what my sexuality was so I would be in a lot of “flirty” friendships thinking that I genuinely liked my female friends I had these friendships with but that was far from the truth. I can’t imagine myself being with a woman but for some reason it’s just easier for me to talk and flirt with them. I have trauma involving why I brainwashed myself into thinking that I’m a magnet that repels boys from me and I still think that and it’s ruining my brain. (I have a crush on this guy and texted him for the first time, he never replied!!!) which honestly proves my point even more. Am I right or is just all in my head? Some advice please!!