Your success in life is determined by one thing - your character. And that, in turn, is created and shaped in your earliest years. Make sure to instill good/tough character in your kids early on, otherwise they'll fail the most trivial tasks.
Check this self discovery list by Megan Over on Page Flutter. As she says, "The easiest way to get to know yourself is the same way you would get to know anyone else. Ask meaningful, personal questions.