I'm not a psychologist, but I did read a lot of my sister's books, and she was.
People start to learn to be disappointed very early. It has been said that the tantrums of the "terrible twos" are the first reaction to disappointment, and part of the mechanism for learning to cope.
So, the conventional wisdom is that we get used to disappointment as we go through life. It probably means that "bouncing back" ought to get easier.
Apropos of nothing much, after a TV football pundit referred to a team as having "bouncebackability", there was briefly a craze on UK Television for presenters and announcers to try to get the word into their pronouncements. Fun for a while...........