Don't give up! Did Michael Jordan give up when he was cut from the high school basketball team? Did Walt Disney give up when he was told he lacked creativity? Did Colonel Sanders give up after having over 1000 people turn him down for his finger-licking good chicken recipe? Did Lucille Ball give up when she was told she lacked talent? Did Thomas A Edison give up when his 2000th light bulb failed to light? And will wynona01 give up just because things aren't rosy?
Sit down and go over all three FICO reports and figure what's hurting and what's not. Figure it out and create a gameplan. Send GWs not only to address listed in your CR, but send them also to the Pres./CEO of each company. If you sent a letter monthly to each higher up, someone's going to listen. They may not necessarily reply, but they could be taking action on your CR and without pulling it you may not know what's going on.
Living on a cash basis will hurt too. I did so for the past 5-6 years and my scores suffered. Apply for secured cards, if you have to, and you could always sock-drawer them (assuming you don't have any now). Fire off DVs to the creditors and dispute with the CRAs. I bet if you attacked every baddie consistantly and persistantly that within the next three months, you'd have scores in the 600s!
More importantly, continue reading here. The worse thing that could happen to you within the next 7 years is that you become better educated! Good luck and keep the faith.