I have severe sensorimotor obssession about my breathing i dont know what to do

I feel like im loosing my mind. I feel like i experience derealization or what. I feel confused like very very confused. I cant even think normally. Im just tired. I feel like im loosing myself. Im scared that everyone tells me that i have OCD, but what if this is all true? I dont think and im scared that other so-ocd sufferers dont feel this way as i do. I feel literally, LITERALLY so convinced that this must be true. It feels like i already accepted that this is true. Im done. My brain is broken. I even started to have thoughts like what if i have schizophrenia or dissociative identity disorder. Help me please. Do i have psychosis or what?

im not diagnosed, but these past two days have been terrible. i constantly have this underlying feeling that i might do something that i think is gross and i feel like i can’t do anything on my own because otherwise i might do something wrong. like i feel like i constantly have to be in front of people so that i can make sure of my every action. this is so exhausting and I’m so confused. and like i keep getting terrible images and stuff replaying in my head. i also try to recall what happened but i feel like i have false event too. i used to have religious ocd and that eventually stopped completely, but now it feels like all my work getting over that was pointless. also like i feel like i might have contamination ocd but not the typical germ type. I just get terrible images and I can’t remember if those images are true or not even though they’re impossible and i feel terrible. I don’t know if i could ever get over this because even the thought of it is terrible.

I have constantly been feeling like if I hit one arm, I have to hit the other and if I set something down and it just didn’t look right or feel right I had to do it again or I had to move it to a different spot in my room I’ve had never been a clean freak, which is mainly what I get told is OCD And I don’t know if I should even have this app. I don’t know if I actually have it. I’m constantly worried that I did something in my past that harmed others and that’s why people don’t like me or I’m constantly worried People are constantly watching me and I don’t know if that’s OCD or if I have it so please tell me I will delete this app and never think of it again if I don’t I just really wanna know