Liars Anonymous Community Group
A support group to provide those with a compulsive addiction to lie a place to share hope, strength and courage with others like them; solve our common problem and help others with a compulsion to lie. We aren't alone!
The sooner you decide to fess up, and I totally know it's not gonna be easy, the easier it will be to clean up your life. Again, not easy, but the longer it goes the harder it will be and longer it will take.
Read thru some of the other replies for some ideas on how others have done it, make a plan, and go for it.