It starts with not using credit to buy anything (if you are already in debt).

Next, focus everything on paying off the highest interest acct first. It can help if there is a specific earning action (something more than mowing your neighbor's lawn) where all of the earnings go to paying off the one highest int. acct. (Garage sale, helping lay tile on Saturday, overtime, etc). By having a specific time that money is earned just for a pay-down, it reinforces your commitment, which is everything.

Best of luck. it's hard to go without, and if you don't keep a little for splurging, whether it's a date night to the movies, or a mani-pedi, you will give up and crash.