I have been trying to purchase a car but my credit is so bad. I even tried to repair it but to no avail.
Sometimes it just takes a time and you need to stay proactive. I know it can be disappointing. 
It is like the more I try the harder it is to be repaired.
Just keep a budget and stay strict. It will gradually get better.
Thank you, hopefully it will get much better and I can get my car.