Failing is the present-tense verb.
In the act. Happening. Still going on. But also learning. Figuring it out. Adjusting. Recalibrating. Refactoring. Resetting. Trying something different.
Failure is the past-tense label. Failure is a decision. The story has ended. We’ve defined it.
Not all failure is bad. Not all failing is helpful.
It’s up to you how you see it and what you do with it.