Hi Mulan,
Long time ago I went to Brazil with a group of people. In the group there was this girl that looked very unhappy. Her sister had been in high school with me. I did not understand her unhappiness, she was healthy and seemed beautiful to me; apparently the whole family was good one. At that time, she was studying to be an engineer. Years later I met her sister and told me this girl had finished her engineer studies and that after a few years she entered again the university to study education. She is now a teacher in pre-school. The salary is much lower than for an engineer but she is much happier. I asked the sister why she did not switch careers before. She told me it was because of their father. The girl felt she had to finish the engineer studies to please him. Now, after all the struggle, the girl thinks she should have been stronger and confronted her dad. But she could not do it. She had to wait to be more independent, having pleased her father first, and then do her own stuff.
At the time we went to Brazil, she was very unhappy and I bet she had similar thoughts like you. But later she found the way. I do not want to calm you down at all, but please, notice, you are not alone in this. There are people around the world suffering similar stuff. The way studies are organized, and our family influence often are not the best for us. But there are ways to correct this, nothing is forever. Please keep posting and reading other people experiences. Also here you will find people to chat with. I wish you the best