I feel this is the final straw

So my mum decided to hoard all my medication and assumed that when I asked for them, I meant I was going to take them all. Things got heated as I was trying to get my medicine (with my name on it)and next thing the police are here which I obviously then have an emotional breakdown about. I start hitting myself in the face and next thing the police are restraining me then putting me in handcuffs. Shouting at me as well, being sarcastic, pointing their fingers in my face. They even followed me to the toilet and back and teased me about my bowel smell (upset stomach and severe anxiety). They eventually leave my room and straight away I tried to end my life which I won’t mention the method. The police eventually came back into my room and “saved” me. I wish I were fucking dead. I feel like I’ve been completely assaulted and as for my mum, I am done with her. She’s such a bitch and acts all sweet and innocent in front of others till the door closes. My heart is absolutely broken that it’s come to this and I feel it’s the nail in my coffin. Any kind words or words of hope would be sincerely welcome.