I really need help I feel like I just forgot or lost who the fundamental me is.

TW I’m feeling really bad about myself today. I feel like a fraud and a liar. I’ve been unable to enjoy my time with my girlfriend because I’m bombarded with my thoughts. I’ve been asking for reassurance from so many people and nothing is helping. Nothing makes me feel better anymore and I’m worried that this is just how it’s going to be for forever. I miss when I could just be happy and not overthink so much. I miss being able to get through my days without this crippling anxiety. I’m worried there’s going to be a day where I realize I have no fight left in me

So hard to not engage the thoughts because even though it's from the "past" (i don't even know if im remembering things correctly and it kills me) and i can't change it, I just NEED to prove it to myself that it didn't happen this way. If you'd asked me questions maybe a few months ago, I would have been able to lucidly explain things. Now I just feel like I'm in a constant swarm of thoughts, not knowing if anything is real. If my brain is to be trusted. Wish I could just get hypnosis to forget

I'm struggling severely. Please comment so I have a therapist or someone to talk to. Someone has caused me to spiral in another group.