A Million Mistakes: Because I Was Easily Available

Everybody has a past.
Everybody has a lesson.
But what cost do you pay
for those lessons?
It is quite a lot easy to
cover up a mistake by calling it a 'lesson'.
But in life,
no lesson is worth learning twice.
Every mistake counts,
and every mistake haunts.
And what you do
when you have such
million mistakes haunting??