You put a lot of hard work and commitment towards achieving a goal.
Eventually, it doesn't work out.
Probably you weren't playing the right game.
Some might find themselves in the right place, at the right time from the start.
For others, it might take longer. Wrong place, wrong time. But it's necessary to be there anyway. It will take multiple shots before they figure out they are in the right game.
You might be one or the other. It doesn't really matter. The only thing that matters is to have the self-awareness and confidence to make the switch when you know you are not playing the right game. And that is not an easy thing to do.
Are you playing the right game?
PS: Inspired by this.