Deception can be so easy, it all starts with one small lie...then another...then another. Soon you are unable to keep track of all the lies, and then you begin to deceive yourself. Once one starts down the road of deception, the way back may be impossible. To come to terms with your own lies and your own past, to look at your true self can be very painful indeed. When the truth comes out, as it always will, even if years later, not only will you have hurt yourself, but all of the people who you ever cared about. So my advice is to always be honest to yourself and others, because once started down the path of deception, there may be no turning back, and it will lead to your ultimate destruction. Turn back while you have the chance.
Moral: You are the one who has to live with your conscience in the end.