Yes I understand this.EVERYONE gets rejection. Even the "cool people."
As for humiliation, you can only be humiliated if you allow yourself to be. It's a state of mind.
But what some may not understand, especially if they had not been through it, is that if from the first day of kindergarten until the last day of high school, there was some of public humiliation for you (often more than one per day) done by others for their own amusement, the VERY LAST THING YOU WOULD EVER DO is open yourself up to more humiliation.
Here's a very simple personal anecdote. As I was the "skinny weakling" back in school, whenever we had teams in gym class, they would wait to see which one I would get picked for (I was usually picked last or next to last) and make that team be "skins" -- so I would have to take off my shirt so everyone could make fun of me. I was 35 before I started even wearing short sleeve shirts again in public.
That s**t lasts a long time.