IN NEED OF HELP

So I’m 20 years old now. I’ve worked some entry level jobs like bartending and house cleaning. I come from a DV home, only realising that and Domestic Violence Orders on both of my parents when I turned 18. I grew up not being allowed to do anything, not allowed to work down the street at a servo, wasn’t allowed to join any sports I was interested in, etc. Due to this I struggle with knowing what I like, what career I want, and etc. Most things that 20 year olds are already getting together. I have no clue. I want to be the first in my family line to break not only the violent cycle, but to be the first to go to university. I want to do something big and fulfilling, and I need a good career to survive as it’s hard to live with no family and no friends (lost all my friends because I was too ashamed of my situation and couldn’t just say what I was going through, why I couldn’t be a present friend, why I couldn’t hang out, etc). The only mentor in my life was my brother, he was heavily into the health world, he had goals like no one I was used to but he died the day after my 18th birthday... I know this is a lot but I just need some guidance... please help.