I don't like my situation

So I have quite a bit of autoimmune diseases, back, hips, left knee is getting worse, and my right knee surgery from 2023 didn't heal properly so my right knee is always swollen. I had applied for a caregiver last year and barely this year I got approved. Well, the agency kept making me uncomfortable for asking for the full amount of hours approved. I was warned by other residents (I live in an apartment) that this agency is bad and the manager is a backstabbing individual. Well, I asked for the least amount of hours to get to know the caregiver because I am very paranoid about letting someone in. I asked for help with some chores, laundry, food prep. The caregiver was very nice but still felt uneasy. After two weeks, she wanted to be fb friends. Felt weird but accepted. She would vent about life and the other patient she cared for before me. I kept quiet. She didn't mind my animals. I kept my chihuahua away because he feels everyone is out to get him. He is a special needs chihuahua. His mom suffocated the litter. I feel he got the worse end of it. So she would go smoke and disappear to her car. Didn't say much because to me, I thought it was a big help. I did keep her away from my room because again was paranoid and kept my prescription pain meds in my room. So she got used to me, she would come to my apartment with injuries. She had a really bad shoulder. So I didn't want to be held responsible for making her worse. So I let her just hang out in the living room. Well, things would be that she needed to go to the store or the local clinic. I knew the manager is a stickler for rules. So I said yeah just go. Well, the last two weeks she was here. She would come in itching and the itching was worse. She showed me the bite marks. I said that is bed bugs. My mental health got worse. She kept snapping at me and we got into a small argument about it. She always said I get itchy coming from the other clients apartment which the client lives in a different apartment three blocks away. No one cared that I voiced my concerns about it. I asked for her not to come in the following week. The last week she was here. I kept spraying different pesticides and constantly washed. I didn't get itchy or had any bite marks. The Monday she didn't come. The agency called me that she did have bed bugs and it came from the other client. The agency said they weren't going to pay for it. The caseworker who did my paperwork to getting a caregiver would get me the help. The caseworker said we don't do it. After two and a half months, of going to the city code enforcement, apartment complex, and agency, I had to pay. I hate myself, I hate that I allowed myself to bring someone to help me. My roommate is footing the bill because I don't have a lot of money. I am waiting for ss case to see if I got approved. 4 yrs of waiting, six ppl were let go of my case. The first two said I didn't exist. Born and raised in Texas. I have a ss number and birth certificate. I am so grateful my roommate is patient with me. I try to help out with money but I pay for household essentials. He has been homeless before growing up. We help each other out. For over a month and a half, I would go in person and leave voicemails for my caseworker about caregiver issues. Apartment complex accused me of having bed bugs. So they sent pest control, pest control guy didn't even know about the work order of possible bed bug exposure. He said you have to do it. I don't have to check. Well, he told the apartment complex I had bed bugs and took pics. I said that is a lie. I have cameras inside and outside. He didn't check anything he said I had to do it anyway. Apartment complex said well, he took pics. I said show me. He said for privacy reasons they can't. I said I don't have bed bugs because I bought the beans pest control uses. I did pre treat the apartment. I washed and disinfect everything. I am thoroughly checking my beds. All I wanted was an inspection and the pest control guy didn't do anything. He was mad he had to do work because he sprayed different chemicals on the floor when I came home to clean I slipped and fell. CT scan showed inflammation but no fracture. I have been having mental breakdowns about this. I hate myself for trusting someone. Sorry for letting it out.