How can I stop letting every little thing hurt my feelings?

laughing is great answer.

stop giving them so much value the people who talk.

and stop beating yourself up.

if they say something and you cry odds are there is a grain of truth to it that you don't want to admit to. and instead of fixing it you just blame them for making you cry. (one thought)

another thought is

you like them and admire them so much soon as they say something that isn't inlined with what you say you feel wrong becuase you placed them so high up on your important latter that nothing else matters. They are not gods or godly they are just humans like you. and their opinions are worth the crap on your shoes. Learning this earlier in life isn't easy. so much luck to you. one day you will learn this and regret that you didnt' learn it earlier

i'm in my 40 and learned this recently.

what people think what peopkle say is just them passing judgement with out seeing what cards your dealt. Don't go show your hand people don'tw ant to see it. just play your hand like a good game player would!

Repeat it to the person as if it were a question.

Learn to laugh at things, including yourself