What you've done in the past?
What are you thinking while did it?
Did you think the consequence?
and when you realize it, do you feel regret?
Because I do!
I did so many mistakes and always underestimate about something small but it cause big problem in the future.
and the result is here I am hug my knees in the corner of my room and wish i could turn back the time.
take a lesson from me, never underestimate something even it is a small thing