Does language shape culture or culture shape language?

I think cultuer shape language. I learn Chinese easily when I was young becuase I lived in a environment that people speak Chinese. It is definitely different to learn language in that country and learn language in a different country. For example, in China I was forced to speak Chinese so automatically I practiced my Chinese even though I couldn't speak at all also when I was familiarlized with Chinese culture it was easier for me to learn. Environment plays a huge role on shaping one's language.