[Triggering/Graphic] Recurring Dream

​I've had the same recurring dream for the past couple of years. I thought it was worth putting out there, if anyone has had the same or similar dream.
I'm going to add a trigger warning, just in case people are disturbed sexually explicit description below.

I'm in my 2nd grade classroom, surrounded by all the students from my graduation class. They're all so big, about the age they are now - but I'm still only 7. The two largest boys that would always beat me and feed me worms hold me back in a chair, and the other people start raiding my desk - they take things that shouldn't be at school, like my work keys and mementos from my old family and things that are irreplaceable. After some time, I accept that these are just material things and that I still have my body so I'm fine. When they've ravaged and burned all me belongings, they turn to me - and tear off my mouth. I can no longer scream or stand up for myself, and despite my flailing they begin to rip me limb from limb. There's no blood, it's all clean - it's although I'm made of plastic. They take my head as a trophy after it's dismemberment and hang it from the projector. They play games with my limbs, and sexually molest my limbless torso after beating me with my own arms. After everyone's had a turn, they drive pencils into my eyes and I wake up. I often feel nauseous and I can't have breakfast. My anxiety has gone up considering I see these people around town, and they still harass me to this day.

Is there something that I have to do IRL in order to put whatever problem I have to peace and get this dream to stop? Thanks.