Hey!
I'm pretty much in the exact situation as you're in. I'm 23, in my second gap year, and I'm starting medical school this year just like you! I'm assuming you're from either an Asian or a Middle Eastern culture as situations like these are quite common in those cultures.
I've lived with my parents my whole life. They controlled everything I did until I attended college. It was to the point where I couldn't even shop for my own clothes. Growing up, I wasn't allowed to have friends until I attended high school because they thought I might be negatively influenced from other children. I wasn't even allowed to leave my house because my parents thought I would get kidnapped just like you. Ironically, we live in one of the safest cities in the United States.
To the partial defense of my parents, they are from a third world country. It is very common to get kidnapped, killed, or held at gunpoint on a daily basis in that country. My uncle who lives there was held at gunpoint over 50 times while walking to work last year. That's how unsafe it was. They grew up in such a ridiculous environment that it's almost impossible for them not to have some level or paranoia. They are also not educated so they don't understand a lot of things that we perceive as common sense. For example, my mother thinks that "Ben and Jerry's Chunky Monkey" ice cream is healthy because it has bananas in it. This leads to a lot of unpleasant arguments in my household.
Once I started college, I had to do something because it was getting completely out of hand. I made a compromise with my parents for me to have some level of independence. I suggested that I worked during college so that I could build a resume and learn about life. They were against the idea in the beginning, but they eventually accepted it after a few months. Thus, I worked a lot of jobs, even jobs I didn't like, just to gain some independence. Initially, my mother kept calling me every hour to make sure I was alive and safe. This lasted for ONE WHOLE YEAR. Once that year passed, they started feeling a lot more comfortable. I was allowed to hang out with friends, do my own shopping, and even come home late.
Basically what I am trying to say is that you need to make some type of compromise with your parents and make them understand why independence is crucial to your development as a person. Most likely they are being overprotective out of care and concern. You need to establish this soon. You do not want to deal with more stress than you have to in medical school.
Are my parents still controlling? Yes, but nowhere near as much as in the past. Our relationship has gotten a lot better and they trust me to the point where I can live by myself once I start medical school.
They still want me to have an arranged marriage with this Polish girl though. 🙄