I don't feel happy when I'm with my family

I hate my family. I don't know when I fostered this hatred but apparently it has gotten so bad that I get triggered sitting with them. I try my best to talk myself out of it, they're my parents/siblings and have done a lot for me but I just cannot stop these thoughts. I look at them and I genuinely don't feel anything, I'm not sure how to approach this. I constantly have to change my personality around them, it's tiring and I'm confused. How do I stop myself from hating the very people who raised me?