They say "you need to fail to succeed". The key thing is that it is not enough to fail, you also have to reflect on why you failed, and this is the reflection which has you progress.
It is not the failure itself which is progress, it is the act of failing, then feeling BAD, and then thinking about how not to feel BAD anymore. Failure without feedback is pointless failure. (This is the same idea than deliberate practice.)
It is not the failure itself which is progress, it is the act of failing, then feeling BAD, and then thinking about how not to feel BAD anymore. Failure without feedback is pointless failure. (This is the same idea than deliberate practice.)