I came up with the following.
Failure is when a defibrillator stops working, failure is when your car engine breaks down in the middle of your long road trip, failure is when your insurance company declares chapter 11 right after you file for flood damage claims on your house.
Learning when a entrepreneur starts a company that does not make it, learning is when a young woman goes from competing for her college at the NCAA level to qualifying for the Olympics and ends up 4th in the race, learning is when you scrape your way through graduate school, work hard on a degree that you are passionate about and realize that the job market has tanked on your just as your graduate.
They might look very similar on first glance but they are worlds apart. Don't listen to others when they call your lessons failures, they just might be envying your courage to learn :-)