The only real difficulty with becoming disciplined is when you buy into the notion that happiness comes at the price of sacrifice. The reality is this: Discipline becomes freedom when you are doing what you love.
You are heir to a heavenly fortune, the sole beneficiary of an infinite spiritual trust fund, a proverbial goldmine of sacred abundance beyond all common measure or human comprehension. But until you assert your rightful inheritance of this blessed gift, it will remain unclaimed and forever beyond your reach.
If you want to be a good parent then be a great leader. You should live a life with passion for someone and something. The legacy you leave your children shouldn't be how you suffered in gratitude for a life you had no passion for. Rather, it should be how grateful you are to a God that believes fairytales can come true because they came true for you.