I'm really sorry about the bad treatment you're receiving. I just quoted this since I've had an experience with both kinds of bosses. My very first boss was very unreasonable and made me work until very late at night. She made me do extra work all the time and complained about paying some of my extra hours. She would sometimes talk with the secretary out loud about her complaints about me which she obviously did on purpose. When she was in a bad mood, she'd even snap at me for wanting to take a bathroom break. There were a lot of other things and it was very hard to work with her.

I had 2 bosses in my second job. They were the best for me. Others complain about their strictness, but it was okay with me. I made some mistakes on the job and got reprimanded, but the respect never changed. They were very good mentors and it was actually one of them who advised me to see a psychiatrist because she knew something was wrong. I never regretted working with them. They taught me how to be professional and treated me and my coworkers equally and fairly.

I hope you'll be able to find another job that would make you feel more valued and respected.