There was a period in high school from grades 9 to 11, I would get bullied and made fun of everyday by several people, I solved it by basically isolating myself from them in grade 12, for example I wouldn't go near their lockers, I would try to hide on the back of class, I would basically hide from them.
And yes, the bullying has made me feel numb to pain and getting offended, I can disagree with someone but I'm rarely offended anymore, it also made my view of the world much darker, and I quickly learnt was I stood in social hierarchies.
But if it wasn't for the struggle then I wouldn't be me