In response to:
I used to have good credit (720)
Now after lots of unforseen health problems, surgeries, and bills...my credit is horse poop!!!
How do you improve your credit after hitting rock bottom?
Credit isn't easily mended but you can work at it.
Try and obtain what's called a secured credit card. This is basically a credit card that requires you to deposit an amount, say $500.00, with the credit card's issuer and in return you can use the credit card to the tune of of that amount, i.e., $500.00. You still make your payments and you will be charged an interest if you have an outstanding balance. After a while you will demonstrate a pattern of making payments on this card.
Another good way is to get a bank to finance an automobile for you. If, as you say, your credit is bad you will be charged a high interest rate but the bank will be willing to loan you the money knowing that the car would act as collateral. After a year or so you should see an improvement in your credit rating.
Good luck!