Anyone else's bpd parent(s) use money/property to manipulate you?

I've been at a community college for 2 years and will transfer to a university next fall. I thought my dad had been helping pay for some of my classes this entire time. Cause of that hes been guilt tripping me every semester over whether he'll help me out with classes depending on "my behavior" ie not putting up with my ubpd moms verbal and emotional abuse. Turns out the money was really from my mom's dad's will, he set aside money for my siblings and I specifically for college. My parents are shitty enough they saw this as an opportunity to manipulate me and stress me out for years.

Another thing is how they cosigned student loans for my older and younger siblings but not me. They say they refuse to because of my behavior. I'll have to drop out of engineering school for a year cause I won't be able to afford it even after saving up for years. I fucking hate them for this.

The best part is my parents are pretty well off (upper middle class). My mom will constantly guilt trip and refuse me from even discussing student loans "because it puts a burden on them" but at the same time shes trying to buy a brand new $50k car to use exclusively for one of her hobbies.

My mom also CONSTANTLY has to talk about how anytime I use or borrow something of theirs that it is THEIR property and that THEY own it. She restricts me from doing certain things and borrowing some of their things (like a dvd they havent used in years) just to prove a point of how "inconsiderate and undeserving" I am.

Anyone else's parents do this? I'm putting them in a home for this.