In retrospect, it's pretty embarrassing that I managed to get myself into more than $40,000 of personal debt. I combined numerous bad spending decisions with a complete lack of understanding of how credit cards work to amass this unsavory, and unenviable, total. Add to that a few ill-timed job losses which caused me to move back in with my parents, and there I was - a single, twenty-something guy facing a mountain of bills and credit card debts that couldn't be paid for.Fortunately, this story has a happy ending. I was able to solve my massive debt woes in only a few years without ever having to file for bankruptcy or pay for debt counseling. I did it all on my own, and you can too.Here are seven steps to…