Excessive Masturbation

All my life i've had issues with excessive masturbation. In childhood, I had severe sexual, emotional and physical abuse by my father(luckily there is a no contact form set by court) and i havent seen him since i was 6. I don't know whats wrong with me. I did it alot at school(middle of class, publicly, mind you it was elementary school). I'd do it anywhere, and now that im older, for some reason, its starting to come back. I just got out of a mental health facility recently so im very stressed. For the past few days, i've been masturbating around 7 times a day, to the point it is painful. If i dont do it, i get severely anxious. I have chronic stomach pain and if i do not do it for a while, the stomach pain gets worse. My stomach pain actually lessens when i jerk off. I'll be in a call with my friends and then just have to mute for a while to do it because the feeling is overwhelming. I want to stop, but I dont know how. Any advice + maybe what this is?