Given that the best player in baseball strikes out a LOT of the time (any sport stats people out there?), failure is actually a naturally occurring part of success (not all seeds germinate, almost all sperm don’t fertilize anything!). And if practice makes perfect (or at least better), it’s useful for us to try, learn from what didn’t work, and try again.
So rather than label things failures, how about “Every time I try, I either succeed or learn something to make success more likely in the future.”