I am sorry your parents are behaving so poorly with you. I am certain they are doing this out of their love for you, but it is misguided.
The first step is for you to get some support. I’d talk to you school’s guidance counselor about what your options are. Schools may have groups, or the counselor might recommend a therapist. Getting the support you need for talking with them is very important. I’d do this before confronting your parents again.