Car Repair Fundraiser

Hello, I'm an 18 year old recent high school graduate who works full time. A few months ago I purchased my car for $1,200. At first everything was perfect, I could get to school, work, doctors appointments etc. However recently my car has been having constant problems, which some could potentially be deadly. I've already put well over $1,300 into fixing these major problems, but I am currently dry financially. I'm starting college in a few months, and have to pay rent to make sure I stay out of my poor living environment with my family. To do this I have to work constantly, but it's still not enough to get by with my car repairs. My goal is to buy/lease a car that will not have me stranded on the side of the road. I would greatly appreciate any help. Thank you so so much.