How can you make money without anyone’s help?

I’m 19 and a few months back I had to leave my family due to come complicated circumstances. I had to leave and there is no chance of me returning so now I have to find a way to start my own life. I stay on my friends couch now and I don’t have anything. I came from poor/neglectful parents so I never got a car or a chance to even earn my own money because I lived in the country and now I live in a small town. There are no jobs within walking distance and all of my friends are in college or living off with their parents with no job either so I can’t ride to work with anyone. How can I make enough money to get a car is my question. That’s all I need to get a full time job and start making a good income but I can’t get a car without a job and I can’t get a job without a car. It’s a vicious loophole that’s ruining my life to the point where I’ve become severely depressed and even tried to kill myself in July. I don’t want to live like this anymore but I’m lost. I know I’m capable of doing a lot of things because I was a very bright kid in school and everyone always tells me how intelligent I am. I know I belong in college but when you’re poor that’s not much of an options so my childhood dreams of becoming a wildlife biologist are all but impossible. Any guidance would be greatly appreciated.