Help with getting a car.

Hello my name is Ria Johnson, I am 18 years old and I am currently struggling with getting to and from both of my part-time jobs and school. I am a full time college student and seeking help with getting a car. Both of my jobs are shorting me hours and I am not able to go out and buy a car. I recently got approved for a used vehicle but I will need $2,500 to put down on this car in order to help with getting to my destinations and back, as well as building my credit. I need as much help as I can get right now because I really want to be successful and responsible. Although my mother is doing as much as she can to help me. She has other bills to pay that she is behind on, as well as helping my younger sibling and my absent father will not help me out in anyway. Anything that can be put towards this car will be greatly appreciated and it will relieve a great deal of stress for not only me but my mom also, and it will help me to reach my goals I have set for myself. And I plan to exceed in each and every one of them