How do people deal with feeling alienated from their own culture?

I’m mostly writing this because I don’t know how people can just work through feeling alienated from their other culture (I leaning when someone is mixed race) for an example I’m white mixed with Hispanic and I have hardly ever known anything about my father’s culture (he’s the Hispanic one) My dad even at one point tried to teach me Spanish as a child but my mom said it wasn’t important since I would have no real need to learn it since I would have no one to talk to (this isn’t true I grew up with a lot of Hispanic family and friends). sometimes my friends make fun of me for being “whitewashed” and that I can’t relate to most of the things they talk about, and while yes I can understand they are joking I can’t help but feel a deep hatred for myself for being mixed white, I wish I knew my own language, my own culture, I try to learn but it’s just not the same. I guess what I’m trying to ask or say, is does anyone feel the same way too? Or am I just being hateful? I really don’t know, if anyone has some tips to help it would be appreciated. (Edit i would also like to say that I do look ethnic and it’s even more embarrassing when people ask me things and I have to shamefully admit I don’t know what they are talking about)