Need advice, please reply😢

I feel like a prisoner to these thoughts 😢 I don’t know what to do. Each time there is a new theme/issue with my ocd It feels as though I am suffering for the first time with ocd all over again. No one around me understand how hard it is to deal with ive had ocd for a few years now but never properly gotten therapy for it only done a few online sessions and after that just dealing with it alone 🙁🙁 im suffering now with someone I’ve never dealt with before and it sounds so stupid. It started because someone told me ‘don’t bend your head back something bad could happen’ I had a fear about it and I started doing compulsions of bending my head back as far as I could to the point my head would touch my back and it’s been causing me neck pain and headaches but I keep doing it and everyday I feel miserable and scared that I’m going to do that compulsion, I don’t know why I keep doing it but it’s making me feel really down. I can’t do normal things because my head keeps telling me there’s no point and that I will keep doing this compulsion and it feels like everything is doomed and I feel really depressed. I’m scared I will keep doing this forever and cause myself an injury 😢😢😢 I need advice I have no therapist and I don’t know how to deal with this. How do I deal with this compulsion, when I am the one who actually WANTS to keep doing it as if it satisfies me doing it? But it’s causing me harm and despite the fact I know that because of the pain I’m still doing it, I feel scared and don’t know what to do 😢😢