>>93131832It will get exponentally worse when you get old for real. 24 pretty much is just a meme old, most athletes are not even in their physical prime yet when they are around that age. Even being in your 30s is not that old yet if you think about it from the biological perspective. It's the 40s when your body starts to fail for real and you have to start taking it much slower.
But of course you can be mentally defeated even during your youth. But I'd argue that it's different kind of feeling old.