They believed me for the next five years.
What was the exact lie that you told them?
I told them that I really worked sixty hours per week
It is hard to admit the truth when it has been a while but when the people find out the will be even more upset to know that it has been years. They will feel deceived and want nothing to do with you.
I am fine with that. I'll use that for the next time I get bored
I think that you should just come clean about it. There is never a good reason to lie to people for years on end.