I am really sorry for what you’re going through, that sounds so difficult. Parents can be a huge influence on self perception through all of life, and it’s especially hard to disbelieve them when it seems like their intentions are good.
Of course, they probably do have good intentions, but they’re only human. They are not wiser than you. They have experience of what worked well in their lives, but that doesn’t mean that is what will work best in YOUR life.
You said you’ve had dreams that your parents disapprove of. I’d like to know, what are those dreams?