Family problems

I don’t know if any one ever feels this way but I love my family but there are times when I wish they weren’t my family. Like how people never believe me. And not even just that. I hate when they think they know me when they don’t. Especially if they bring up the excuse that they were a child before. But obviously it’s different. Or some people may think I’m overreacting but I know what I know and I know what’s right. I just need advice on what I should do because I have no one to talk to.