Open several lines of credit -- for example a VISA credit card, a department store card, a gas card, and use them and pay them off. Buy a car using credit, and be good about making your payments on time. If you have a hard time even opening one of these types of lines of credit your can do a "Secured" line of credit. You give the bank $1,000 (or whatever amount) and use that credit card and repay it. Good luck!