What was your fatal mistake?

An affair that i had 20 years ago which nearly cost me my life and losing my family

Majoring in a Liberal Arts subject in college.

i only befriended people because i thought they were useful. not an error i intend to repeat.

Drinking as much as I had. It made my health so much worse.

Trusting a sister who constantly does dirty deeds

Taking her at face value.

Not acting sooner

I haven't made one.

Rage