Hair pulling disorder

I need advice. I’m constantly washing my hands after going to the bathroom/touching something I find gross, but it doesn’t stop at just washing. I have to keep washing til I feel right (usually 3-4 times). It also isn’t just my hands, I go all the way up my forearms. I know in my head that once is enough. But I can’t kick this repetitive behavior. I know I should just start only washing it once but I don’t know if I can handle the panic that will come after. I need advice/tips if anyone’s gone through something similar what worked for you. Im just sick of this

i’ve been dealing with this “thing” since i was 15. (i’m 23 now) if i have a bad memory that i have done when i was really young or just an intrusive thought i feel like i need to tell my mom or boyfriend. it’s been on and off ever since but since January hit it’s been an everyday thing about the littlest things. mostly about my relationship. an example is i was talking to someone random at my job and we were talking about taxes and when im in deep thought or just thinking i do a thing where i bite my lip (not in the sexual way) and i had a thought when it happened “was that sexual?” and i felt like i did something wrong and i went for a while thinking that until i told my boyfriend about it. or like my ex’s face has popped up in my head in the most inappropriate times and i feel the need that i have to tell him. (my ex was not a good person) i feel like im a prisoner in my head everyday, trying to justify thoughts or remind myself that its just a thought. i didnt know that this was or could be a form of ocd. it runs in my family but i’ve just never considered it being this. i always called it anxiety or depression but i always felt like it is more than that.

please i need someone to share experiences... - that a certain facial expression of a person to whom ocd is attached causes a lot of thoughts that are connected to that facial expression, and that the images in your head are very detailed, and that they have a sound, words, and that you have a feeling of some kind of crawling from the groin all over your body?