whats your definition of success?

how would you define success? in my quest to become successful, have let my ambition become my tormentor, a heart that was filled with peace is now filled with regrets. I was so caught up with my dreams and i ignored the wonderful people in my life, i never really appreciated them like i ought to, never told them how much they meant to me, I really wish i could turn back the hands of time to tell them how much i loved them but its to late. Am I paying the price for success or the price for being young and naive?