Single mom raising money for a reliable car

I’m a single mother and I am trying to raise money to get myself a good reliable car. While also having to pay my rent and bills. It’s so hard. I also have an autistic son so in order for me to go work, I need to pay my sons babysitter for watching him.  I just really need a good car because my car is basically done and it’s my only transportation:/ that’s the only reason I’m doing this :/