As much as you would like it to be the case, it is never someone else's responsibility to let you down lightly.  That's why when you ask a question, you should make sure you are prepared to receive any answer.

It takes practice, of course.  That's why some of us are not very good at it; because we have not yet put in the reps.  It is not really about thickening your skin and developing callouses, but rather, about learning to yield to life without carrying expectation and suffering.