The thought may be freeing to you, but many others become paralysed by it, obsessing about “the right choices” at every moment.
An alternate view: it is because we only have one limited life that our choices don’t matter. We and everyone our choices touch will die, and nothing will have mattered. Depending on your situation, that thought can fill you with dread or be profoundly calming.
> Make the best of every minute you have, and live it as if it were your last.
That is both impossible and (I’d argue) unhealthy. I wouldn’t waste my last minute cooking a meal, yet I need to spend an hour doing it now to survive another day. “The right choice” and living every moment as if it were the last seldom overlap.
The Simpsons had a great joke on the platitude: https://youtu.be/lkAaQQal2ck?t=20