Need help with a roommate oweing me money for the deposit when i did the dirty work for her...?

I think you're being petty. For the last few months you have basically been living rent free. Your roommate did not charge you rent even though she probably should have asked you to contribute. I know I would have. So after you've been living rent free, you now want the full security deposit back because of work you have done around the house? Consider that work payment for rent and utilities and don't look back.