I've travelled to countries and stayed for a bit whereas there were things I loved. I'll give an example. I liked in Nepal how people were welcoming, open, spiritual.
I didn't like the conservative aspects of their culture, like swimming fully clothed, even in the heat not wearing anything that leaves the skin exposed, etc. I guess, especially if you come from a different culture it can be challenging, not being able to wear what you are used to.

I like what Voodoo says. Choose what you like to adapt to.
Sometimes though you cannot choose, like with the clothing for example, I was swimming in my swimsuit and I was looked at weirdly and so I adapted...I was wearing a long shirt above or going to remote places to swim.

You can also bring some change...:)

As long as you don't deny your roots. I find that extremely cringe and pretentious. Some of my cousins are like that. They say they only speak English, ironically their English is poor and they refuse to speak Spanish.
In any case, if you really want to learn, there's nothing really stopping you. Spanish is very similar to English. The Spanish alphabet only has four more letters than the English one and some words are literally written the same. Good luck.

Try to find those in similar situations to you and build your own network.

This is the best I can offer. I do know intercultural relationships can be difficult.

My mother was a gypsy in Europe before WWII. They were despised by everyone.

One of my friends experienced this as the Spanish-speaker in an interracial marriage—she married someone selfish. He didn’t want his wife and son speaking a language he couldn’t understand—and he couldn’t be bothered to learn Spanish himself. My friend acquiesced to keep the peace and didn’t teach her son Spanish (she still kicks herself for having given in).

Years later, she’s divorced, and her son is grown, but in the meantime he took the initiative to attend Spanish classes, and of course she helped him. So now he can communicate with his relatives on her side. Better late than never.

Why hate yourself for a decision that was made for you???

You had no choice in what your mother decided - so, if we're looking to proportion hate here... shouldn't we be hating on mom for making the choice that she made. After all, it had some effects on you in your later life.

I'm grateful I'm not ..I embrace it ...all of it and so does my family

I’m of mixed English and Chinese heritage and have never felt alienated by either side 🙂🐼🥢

I got to pick and choose which parts of which culture I wanted to celebrate.

Do you have a community you can connect with?