Disagree.

There is a difference between failing to do something that you alone are responsible for, and failing something with other people.

If you fail going to the gym, that's on you, and no, you should not give up.

But if you fail, let's say, a rugby match, that may not be entirely your fault. What if your teammates are demotivated and don't want to play anymore? You better switch team.

Nonetheless, thx for reading!