Yep, that's pretty much the point some of us are getting at. You have to be willing to fail - put yourself out there for failure - to get to some things. Whether we call that loss a failure or not is mostly semantics. I think most folks are using the term "failure" to refer to any time you try to do something and it doesn't work. The only difference in what you're saying and what others are saying is the definition of failure being used.it's a bit glass half empty/ half full.
some failures are absolute, if you fail your driving test, you've failed, your objective of being judged competent to be on the road has not been achieved. that experience may help you next time but its definitely a failure.
if on the other hand, you decided you want to be good enough at chess to qualify for a regional championship. then your going to have to play good player and get beat a lot, in order to improve. just playing some bloke in the pub, may mean you win a lot, but it's the losses which are how you learn and improve. in that case there not failures, just learning through experience. if you dont make the regional championship, then that's a failure