How to tell if someone is putting you down or if you’re being too sensitive?

Like generally how can you tell? Most of my friends seem to make these mean comments about my appearance and my personality, but How can you tell if they’re being mean or if you’re being too sensitive and they’re not that bad?
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I’m half Asian half white and one of them continuously makes racist Asian jokes in front of other people, even at parties. It’s like she can’t keep her mouth shut about it. She’s not racist to other Asians by the way, just me. Another one also makes fun of my ethnicity in a different way, saying guys only like me if they have a fetish. Wtf.
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Various family members have told me I’m over sensitive and that there’s nothing wrong with their comments. But they just make me feel bad.
How to tell if someone is putting you down or if you’re being too sensitive?
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