My friends bully me for being younger


My friends are mostly15 to 17 years of age and I’m 13 they bully me ,insult me…
Sometimes if I don’t understand things in class they’re like “its cuz you’re 13”
But I can’t be bothered I went to js1 from primary 4 and the rest of them did it up to primary 6 and they still even come to meet me to explain things to them…
So you see, don’t be bothered(unless if it reaches the stage of harrassing or beating you) keep being you
Lots of love❤