For someone who fears failure, the thought of failing is unacceptable. I think that a lot of people who struggle with depression also fear failure, especially when they convince themselves that their depression is “fixable”. When you convince yourself that failure is not an option you “fail” to fully grasp the idea that there are lessons to be learned, that there is something to gain in the long run.
It seems that everyone I meet fears “others”: what “others” might say, or think, or how they will judge us. I think we’re socialized to have this fear. Not everyone feels it the same way or to the same degree, but most of us experience it.