Never apologize for your fluency in english. If you have a different mother tongue, you are under no obligation to know english at all, let alone fluent english. Never let anyone make you feel bad for not speaking proper english. Be proud of your mother tongue. Why should we learn their language when they mock and refuse to learn our own.
"I think all the pressure that I put on myself has been paralyzing. When I graduated from high school, a lot of people wrote in my yearbook: ‘You’re going to do great things,’ or ‘I know you’re going to make it big.’ I realized recently that with all the time I spent trying to figure out what my ‘big thing’ was going to be, I passed over a lot of small things that could have really added up. The moment I became content with taking small steps, I started moving forward again."