This is super important to me. My dad really wanted us to be Americans, but now that I'm older, I'm trying to connect with my heritage. There aren't a ton of English language resources for learning about the culture, and so the best most viable option is doing it in the native language, which I wasn't taught. I'm learning it on my own, and it's challenging, but definitely worthwhile.
I'd heavily suggest connecting with foreign family ( cousins, neighbors, etc ) on Facebook to practice language. They'll be excited to hear from you, and even more excited when they see you trying your best to communicate in the language of your ancestors...!