Parents Refusing Me To Have Access To My Bank Account

I am 19 years old now, and ever since I started working at 15, my parents have never allowed me to access or spend my money. I have saved up over 28k over the years, and now I am trying to get into college. Growing up, my parents have always tried to force me into joining the military, even to the point they took me to take my ASVAB at 17 with the intentions of signing me up for delayed entry, but I never signed the papers.

They have always shot down the idea of college and anything else that wasn't the military, to the point that they will deprive me of anything else just to get me to join the military. A lot of examples would be: them not allowing me to get my driver's license for me to get a car; Not allowing me to get a job (they withheld my documents to get one); Not even allowing me to get a phone until a couple of months ago; and not allowing me to get braces growing up or even now simply because you can't join the military and have on braces.

My Mom and stepdad are currently divorcing, and now my Mom is using that as a ploy. I am the oldest of three, and my mom wants to hold me back just so I can help raise my younger brother. (For background: I am the oldest of 3 me, my sister, and my brother, but my Mom only cares to keep my youngest brother. And it's best to mention that I live in Georgia with my grandmother while my family lives in Maryland.) Their divorce is not mutual, so I can only assume that it will take an extremely long time to finalize. I have had my grandma's support with the process of my SATs and applications for college, so today I told my mom that I finished my applications for college, just for her to tell me I shouldn't go to college until she knows where SHE is at after the divorce?

Whenever I ask for access to my account, my mom just gets hostile with me. It's always a different reasoning every time, if I'm being honest. Whether it's them bringing up how I would spend my money when I was around 13 years old, or how they don't trust me with my own money. It's so bad that when I was allowed to work as a minor, I was receiving tips, and I used that tip money to buy a new shirt. My parents got so angry that they kicked me out of my own room, and I didn't have a room at all the way up until I moved out to live with my grandma. To which they proclaimed, "You think just because you're making your own money you think you can spend it?"

Edit: I am the primary owner of the account. I know this because a little after my 18th birthday, one of the bank tellers let her know that I had become the owner, since I was now a legal adult.

Thank you for taking the time to read my issue

Location: Georgia