Life inevitably changes, but you will be an agent of your own change, rather than a victim of it.
Humanity developed from that same premise. Our “ancestors” survived when they were able to predict or foresee more difficult times. When they couldn't make ends meet, they had to decide to move. And that always involved a great deal of energy. Either in the anticipation or prediction, if you want to call it that, or even in the move itself. If there was a decision that wasn't the right one, the consequences would be very harsh.
Nowadays, we can say that a good percentage of us will never suffer from difficulties. The real difficulties that can threaten our integrity. That's why, living in a world or a reality where comfort is more than strictly necessary (and that's not a bad thing, of course), we end up “inventing” problems or having more destructive thoughts about our abilities.
But that's part of human nature, isn't it? Always wanting “more and better”
"Integrity" is a word that resonates with me. Act with integrity. Do what is the right thing to do, even if it might be a cost. hold yourself accountable, even if no one else cares.
This could be my life motto. I remember some decision that I've made that wasn't "favorable" to me, but that made me kept my integrity. Not my integrity on a physical sense, but integrity as a set of "not written rules".