Its about them, not you.
I cant remember who initially gave me this advice, probably my dad, but it is something I have heard over and over again through the years.
People make fun of you or say nasty things or snub you because they have an issue.
Its not about you. Its about them.
They have insecurities and issues within themselves.
This doesn’t mean that you need to forgive them or allow them to walk all over you. But you must understand that their attitude is about them and not your lack or issue.