me

I've got to the point when I'm not saying things that I want sometimes to say because I'm not sure if it is culturally accepted. Before saying something I may ask some of my American friends if that is ok to say. It's like being constantly edited. Purity is lost.
And when I do mistakes I do learn. But for some reasons some of my friends think that this cultural dissonance is not acceptable and offensive for me, so if they know that I'm wrong they do not correct me. Knowing that I double check so many things now. I feel like I'm doing double job for no result.
I feel like I'm saying some important things too late and responding not timely sometimes. And all these things just to make sure I won't hurt anyone. And still I do.
Weird...