I think I want to cut all contact with my parents
Why do you want to cut contact with them?
I'm the sole reason they're still together.
It's wrong to cut your parents out of your life. It's expected that you try and stay in contact with them.
Good luck to them in being single when I leave.
Don't you love your parents and what they've done to you? How are they going to feel when their child just suddenly abandons them? How about telling them why they are being problematic instead of disappearing, you can still have a good relationship with them that way.