How should I feel about my mother after she called the cops on me and sent me to a mental institution?

I've been very sheltered and isolated most of my life meaning I don't talk to people. I don't have any friends and this is mostly because I am afraid of people and am extremely shy. I'm 20 years old and still live with my mom who supports me. (Its just me and her) recently, I've been having panic attacks and I have been developing fears of things I have never feared before. I didn't want my mom to leave the house because I was afraid something was going to happen to her. So the other day she said she had to go to her nephews house to get her car fixed and it was important but I didn't want her to go alone so I went with her. It was the worst experience because I had to be around people and answer their questions and it seemed like we were there all night. It was very awkward So when it was finally time leave, I broke down and cried all the way home. I started having another panic attack. We got home and I went to my room and cried and couldn't stop crying and she came in and said she was sorry for whatever it was she had done. Like she didn't know. during the whole time we were there I kept telling her I wanted to leave but she blew it off and ignored me the whole time. I was very upset with her for putting me through that. So I told her how I felt and I told her to leave but she refused. I just needed some space. I needed to be alone and get some sleep because I was so tired because I'm suffering with mono and am in physical pain because of it. I kept telling her to leave but I felt like she wasn't hearing me so I felt like I had to say something that would get her attention so I told her if she didn't leave then I was going to kill myself. So she finally left the room and I was relieved. I wasn't really gonna harm myself, I just needed time to think. So after that, I heard her talking to someone and I came out and she told me that she had called the police on me. I was so shocked, and hurt and terrified. I felt so betrayed. Why couldn't she just give me some time to myself. I ran out of the house and just needed to talk to someone. I started calling a help hotline but by the time I got through, there was three cops after me. I was so horrified. One of them grabbed me and put me on the ground. He lifted my shirt up. I felt so violated. How could my own mother put me through this. I tried to cooperate and answer there questions. And they wouldn't let me go home unless i go and talk to someone. So they made me get on an ambulence and they took me to a mental institution where I was exposed to things that I just can't get out of my head. I'm just devastated by it. Having people touch me in strange ways. Sick people. I didn't belong there. They wouldn't let me leave. The people who worked there were so cold to me. After 24 hours of no sleep, no food and so much pain from my mono. Emotional pain. They were finally going to release me. I lied to the doctor they had me speak to. I would have said anything to get out of that place and they had me sign discharge papers and one of the workers said "her mother is here to get her." I saw my mom through the window. She was crying. I just wanted to go home to my room. I opened the door and there she was. She asked me for a hug and I refused. I thought I would have missed her or something but I have never had such a strong hatred towards anyone or anything in my life like I did when I saw her. We got in the car and went home and she didn't say one word and neither did I. Now I'm in my room. I haven't seen once since this happened yesterday. I've just locked myself in my room. She hasn't made any attempt to speak to me and neither have I. My question is ... What do I do now ? I have nobody to talk to. No family, no friends, nothing. I would leave if I could but I don't know how to drive and I don't know how to take the bus. I have no money. What do I do about the situation with my mother? I don't think I can ever forgive her for what happened. Even if she apologized, I don't think it would make any difference in the world. Instead of leaving my room like I asked her to and giving me some space, instead she made me feel worse then I did before by having me exposed to horrible things that have created a new wound. I hate her so much I can't even look at her. Please help me. What should I do? What can I do?