i have to take this psychology class for my major and its developmental so we talk about minors and it triggers me so much but what else can i do? i just sit here uncomfortable and anxious

I'm in college and about an hour ago i had class. I like to sit alone bc I get a bunch of stupid intrusive harm thoughts. Anyway I couldn't focus AT ALL today. This girl decided to sit next to me and I wanted to ESCAPE. Like i desperately wanted to get up and leave to the bathroom and wait till class was over. I took a deep breath and stayed anyways and tried to focus on lecture but i kept getting so many thoughts and I kept hyperfocusing on my right hand (which was next to her) and my hand felt so weird! Like tingly?? I was like "omg why is my hand feel so weird?? Does that mean i want to do something?!" And it kept imagining me grabbing at her or grabbing my drink and throwing it on her while i was trying to take a sip. I tried eating my breakfast to distract myself but i was holding a fork and got another thought. I realized i was tensing my hands (as a compulsion... i try to keep them as still as possible and as close to me as possible bc the thoughts feel so distressing and the "what if i act out " is playing in my head) And I was internally panicking and now im at the library feeling sad and i feel like I need to solve this. I spent the past hour just mentally reviewing the whole class time rn. The whole class time I was at the edge of the table trying to stay as far as i could and i would get relieved whenever she would stand up to leave the class for something. I managed to make it through the whole class without leaving though but the question in my mind is bothering me so much, "how do I know that these thoughts aren't genuine or are thoughts I want to carry out and why was my hand feeling so weird?" I feel stressed at the library and i want to figure this out 😞

I dont want my relapse to stop me to assist, I will go but I am sad because I don't want a beautiful moment to became horrible because the fear and dicomfort I am feelling this days. It will be a good exposure but how can I enjoy it? The depression came back, I wasn't prepared for this, like I knew OCD is chronic but I forgot it hahaha Right now I am trying just to think in short times like, 24 h and it is helping a bit Update: The day was really good !

i’ve graduated and it just seems terrifying now because my pocd is flaring up again and i’m terrified of myself , i was planning to become a teacher but i just find disgust in even applying and I want to avoid children I have had these recent thing where i have intrusive thoughts and im scared to look at children because im scared i might look at their intimate areas and it’s killing me because i avoid looking at children or even have conversations with them because im scared of what my ocd does. Even when i try to conquer my fear of looking at children and just letting the fear sit, my OCD convinces me that i do look at them in a weird sexual way and I feel like ripping myself into shreds even saying that.