Hello Doctor, I Have This Problem Which Is Am Always

Hello doctor, I have this problem which is am always talking to myself, and repeating words to my head I do this 24/7 (except when am sleeping), but over the years it has gone a little bit better, like just last year I had severe anxiety, and I was always scared when I talked to myself, but now I occasionally feel scared, I am having lots of problems especially in school, I keep checking equations with my calculator even if it was as simple as 1+1, I don't really have any problems with washing my hands and sometimes I force myself to not wash my hands probably and I still act normally, but when someone coughs or sneezes beside me I cover my nose, or go sit somewhere else, at night I occasionally hear footsteps, and feel that someone is behind me, I always sleep with the lights on, and it sometimes takes me about an hour to fall asleep, I sometimes feel like my body doesn't really exist, and I am only a brain, and sometimes I look from a different perspective, but when I return back to the realization that my body isn't only a brain, and I see from the first person perspective like a normal human I feel a very weird sensation, I lack trust, even with my family, because I always think that they are secretly giving me medications, and they don't want me to know, even though I have no evidence to support that I stopped eating some of the foods I used to eat just to know if it is real or not, when I was in 6th grade I had this fear of losing my eyes, so I locked myself in a room, got a pencil, and I was going to pop my eye, the pencil was so close to my eye but luckily, I didn't do it, I occasionally have thoughts about hurting someone or touching them inappropriately, when I was riding the subway with my family, I was so tempted to push my mother off, and when we were on the street I was so tempted to push someone off, and when I had a pencil, I was so tempted to pop someone's eye with it, and those are only a few examples, in school while the teacher is standing I sometimes have the urge to touch them inappropriately, I occasionally forget things, but it's not really that serious, and I wouldn't classify it as ADHD. I would really appreciate your help. Thanks.