We are only as good as our most recent project, achievement or game. Isn’t that what people say?
On the other hand we’re not supposed to consider too strongly the sunk costs of things that happened in the past.
Learn from experience for sure, but don’t make future decisions based upon only what you’ve already invested.
Yet another trial of the “live in the moment” world. It’s a real challenge to be a realist, to discover the current facts, and to enjoy the glow of hope while not relying on dreams.