Please give me Islamic advice, assalamu alaikum

Assalamu alaikum. For about six years I’ve been dealing with a severe illness and constant hallucinations of many forms of abuse. It truly feels like I’m possessed, stalked, harassed and tormented all the time. I hear voices that comment on my thoughts and sometimes seem to control my mind, so I struggle to read and focus. They insult me, laugh at me, hit me, assault me in my mind, block my thoughts, press on my throat, and make my body feel dysfunctional. Sometimes the voices are pleasant, but most of the time they’re blasphemous and very evil. I’m completely unstable. I can’t sleep well. I have dystonia that makes it hard to brush my teeth (even with an electric toothbrush) for days at a time. My hands and arms are stiff and my neck twists painfully all the time. It’s extremely difficult and painful to do my hair or wash my face. I also have arthritis that leaves me very weak, so I can only shower every 1–3 days. I have active Tourette’s as well, so I can’t go to the gym and when I go out people assume I’m on drugs. My memory is poor, my handwriting is a struggle, I can’t relax, and I can’t function. I’ve tried nearly every antipsychotic, muscle relaxant, antidepressant, and OCD medication my doctors suggested. They often tell me they don’t know how to help further and that they’ve tried everything. I’m waiting for specialists for my physical disabilities, but those appointments will take months. I’m unable to work and have been on disability for three years. In two years I won’t be able to afford living alone and will likely have to move back in with family who either assaulted me, abused me, or still support my abusers and treat me with hatred. My mother told me that once she and my father die, no one will help me. My father assaulted me when I was 14 and my mother still sides against me. I hate myself for so many reasons and I’ve committed major sins in the past (I repented), but all of this makes me feel I cannot live with myself anymore. I can’t handle it. I don’t have any concrete plans, but I keep wondering: does taking one’s own life remove you from Islam? What if a person has been sinful or feels like a bad person? I’ve tried everything and don’t have malicious intent, yet each day feels like dying. What should I do? Please, I need Islamic guidance and compassionate advice. If anyone can share relevant hadiths, Quranic reminders, or practical steps - like how to find urgent Islamic counseling, combine medical treatment with ruqyah/dua in an appropriate way, or emergency resources for someone facing abuse and homelessness - I would be grateful. I welcome dua as well. JazakAllahu khair.