Pay off car title pawn and chapter 13 bankruptcy

Hi I am a single mother of 2 who up until recently managed great. My ex husband got me into a lot of debt that forced me to file a chapter 13. I have paid that for 4 years. I owe only about $6500 on my bankruptcy and I will be done! However in the past year work was slow and I had no choice but to pawn the title to my car with Titlemax(biggest mistake of my life). My payoff is $6800 and I am desperate to get it paid. The monthly interest alone is $680 and is killing me. I need to finally see the light at the end of this dark tunnel I have been in. Any help is greatly appreciated. I do work full time if that helps