Narrator: ARE YOU MAKING THE BEST USE OF YOUR TIME?
T-Rex: Yep!!
T-Rex: No, wait, scratch that.

T-Rex: 100% DEFINITELY NOT.

T-Rex: The best use of my time would be if I'm using every single moment to its fullest potential, right? And we live in a universe wherein our past decisions affect what future we get (THANKS A LOT, REALITY), so blowing even a SINGLE moment fifteen years ago could make my present suboptimal.
T-Rex: Put it another way: if every decision creates zillions of alternate timelines, what are the odds I'm in the #1 best one??

Utahraptor: Vanishingly small.
T-Rex: A'yup!

T-Rex: But that's freeing! NOBODY is the best person they can be. Whatever we do with our lives is a) probably not our best destiny, SORRY, and b) we're not even doing them as well as we could! We're all screwups!
Utahraptor: You sure know how to inspire a dude, T-Rex!
T-Rex: I SURE DO!!

Banner: Today I screwed up, but not as much as I could've
T-Rex: Yaaaaay