sleep has been perpetually fucked bc of nightmares, now auditory hallucinations, how do i fix it? (CW for mentions of SA)

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I have ZERO clue if this comes under asking for medical advice or not but if it does please please please just take down the post or tell me. im not really gonna go into detail anyways.

Since last July, maybe? id been having dreams of the girl who molested me on an almost weekly basis, I'll refer to her as Gllory throughout the post.

This, combined with school, really fucked up my sleep. it'd only gotten worse when one of my friends suddenly updated me on her, saying her mental state was really bad.

It made my dreams worse. They'd begun to occur more frequently and most of them took on a kind of self loathing stance idk how to describe it but it was kinda like me continuously being berated by her her friends and everyone i knew alongside her. I have had more normal dreams involving her but even those irk me and make me feel incredibly uneasy. I do not like seeing her. I do not want to see her.

So, in order to cope, I started writing poetry. I posted it on a public account on insta and only my close friends really followed it. This included a mutual friend, who, Glory broke no contact through around May ish when she'd come across the account. It was kind of like one of my nightmares came to life. She was saying stuff like, "can't he leave me alone im trying my best to improve" (idk. i cant really remember because i deleted the chats). Our mutual friend told me it was harmful and that I should private the account. None of my poems mention her explicitly, i do not use tags, my posts all have the same shitty format, and i generally do not get much traction on the account.

As of recent, the nightmares have become less frequent, but my sleep is still fucked. I wake up in the middle of the night and struggle to fall back asleep, I have this constant urge to claw at my skin, and idk how to deal with it, but im definitely better.

And, since the 20th, ive been, I think, hallucinating the sound of someone masturbating for hours on end at night. I hear the sounds of clothes rubbing against skin, of continuous squelching (both quiet and loud), low moans, and the like. It's genuinely terrifying and its been happening for 6 consecutive days. I dont watch porn, I dont want anything to do with that kind of stuff. I exercise pretty regularly. I have a part time job, and I keep myself busy during the day in spite of my constant fatigue. I woke up in the middle of the night for prayer, around 4:30, and i stayed up for around an hour because the noise would not stop. It would not stop when I was trying to sleep around 1AM or so. I don't want this to be a repeated occurrence. I cant wait this out like I did the nightmares. Im just a teenager, so im trying to find solutions that I can actually implement 💔💔💔 Any advice, please?