They started out a while ago, basically I just keep having intrusive thoughts about imaginary situations that anger and stress me out, they involve things like me living with abusive parents and the situations that come with that, or me being accidentally rude to people and hurting their feelings, and a lot more, most of these thoughts come from things that I don't like, like child abuse and social anxiety

These thoughts have been severely effecting me and my parents 

When I have a thought I always get really mad due to the contents of the thoughts and how I would hate to be in that situation, so when I experience a thought I have a physical reaction, like making a sudden movement, or saying something to myself like "shut up" or "okay that's enough I'm gonna go drink water now" and then not doing that , all of these end up concerning my parents a lot, because I look like I'm going crazy when I just randomly spit out something like "okay leave me alone" when I am alone in my room

But that's just the easy part, I always have thoughts about arguing with people about stuff, and I always end up arguing with them In real life too, as in I would be experiencing a thought in my brain, and I would physically speak to myself in real life with the thoughts and argue with them, and this also has scared my family a lot, Because I would just be sitting there sometimes even with them in the car, and I'd just start talking to myself angrily

2 days ago I was sitting in my room and drawing I was having some extremely uncomfortable intrusive thoughts and I just couldn't take it anymore so I stood up and SCREAMED from the top of my lungs, witch terrified my parents and made my mother cry

And I don't know what to do now, I already went to therapy last year for a possible OCD diagnosis and took ERP but at the end therapist said I didn't have it, I wanna go there again but my parents won't let me because they don't want me to think I have another disorder

I tried looking up stuff online, the most common way to stop anxiety intrusive thoughts is through ignoring the thought and not engaging with it and essentially desensitizing yourself to it, but I simply cannot stop engaging and arguing with these thoughts without zoning out and forgetting about it , I heard that maybe trying to ignore them for a certain time, like 30 minutes for example would help but I am yet to try that

Like I don't know what to do now, I have to study but I can't do that properly, and sometimes I can't even pay attention in class, and my parents are losing their minds and it's effecting their physical health too, maybe I should look up more reddit threads of poeple instead of YouTube videos about intrusive thoughts?