Comfort zone of rationalization.
We rationalize our deceptive behaviour. We empower ourselves by giving logic to our dishonest actions. Get out of this comfort zone of rationalization, and look at your actions objectively. Even better, start looking at your actions through others' lenses. I think the reason we never want to admit dishonesty is that its opens up doors to vulnerability and judgement. The thing is, you have to see start seeing that vulnerability and judgement are the catalysts for self-growth.