Not sure if you noticed, but the recent years have been pretty hard on *you need to fail to move forward* and *there is no success without failure*. In fact, there has been so much about it that even P. Diddy, Puff Daddy, or however that dude calls himself these days mentioned it in a commencement speech.
Somewhere I even read that people starting to being proud of failing and bragging with it, as some sort of award and reassurement of being on the right track compared everyone else who is not failing.
Don't get me wrong, not everything will work out in your life. Doesn't matter if you end up successfully or not, either way, things will not go how you expected them to be. So yes, you will learn by not accomplishing sth you wanted to accomplish (at least for a couple of times or you decide to go another way). To get some solid backup and paraphrase Thomas Edison: *I discovered 1,000 ways to not make a lightbulb.*
(Because your argument will become indefinitely stronger once you have a successful quote supporting it)
Anyway, the point is and sentiment I am trying to convey, 1) why celebrate it and 2) why call it failure in the first place?
1) Why celebrate it
Coming back to my point before, you are not becoming a master just because you fail 1000x. If you don't have an action plan behind it and/or get smarter after each time, or actually try to accomplish sth you want to accomplish, then well, you will continue to *fail*. It's not cool to *fail*.
2) Why call it failure in the first place
It's way cooler to learn, study and discover new things. Things is also rather the mental programming I like to use for myself. It's not that I am failing or anyone. We do things - either with or without thinking behind it - that will help us accomplish sth. If the results than don't turn out how we wanted them to turn out, why not, what did go differently than we thought it would and what needs to change for a better outcome next time?
Never stop learning. And when something doesn't turn out how you expected it to be, what can you learn from it?
It's true. If everything you do turns out as you expect it, you likely not learning anything, because, well, apparently you already new. Doesn't mean it's a failure.
Go out, enjoy life and make mistakes.