The Nuances of Language

There are certain ways of talking about culture that are broad, and some that are just insensitive. As a still-learning officer in my high school's Social Issues club, I'm often grouping together different groups or cultural practices in ways that don't necessarily fit together, or that actually disregard a lot of necessary characteristics. For example, it's not okay to talk about Asian Americans and only indicate the communities/regions of East Asia--Asia is a continent, with many different countries and many different people. Not all of these individuals are financially well-off, as America has seemed to portray with the "model minority" stereotype. In fact, mental illness in Asians and Asian Americans is rarely talked about just because of the lack of inclusive discussion. Have you ever struggled with these nuances in language? If so, how do you seek to combat it in the future?