That said, I think these are issues that are always going to come up in life. I wouldn't necessarily describe it as a quarter-life crisis. The crisis part is the realization that these are real issues one has to reckon with, essentially forever. That's life.
I think with age (being 42 and knowing how much more driven I was in my youth), you do eventually start to realize competing with others or even oneself is not necessarily a great goal. Life is about experiences and living. Sometimes things go your way, sometimes they don't. A lot of it isn't in your control.
Trying to be better than others or yourself a year ago is very hard to sustain. You eventually have to be okay with who you are where you are right now. That doesn't mean you give up on dreams, just that you hold them in their proper context.