I think i may be a compulsive lier, how do i get over this?

i used to be an awful bullshitter, trying to get attention and keep up with being popular. i had a sudden epiphany and realised how awful it was. im now disgusted with myself and have depression, but i'd rather this than still be a lier. i used to say some bad things, but i want to know how to move on, as im constantly worried people have found me out and will use this and think im awful like i know i am. help?