Do not let people who are prejudiced to demoralize you.People are going to judge you if you do something slightly different from the way it is normally done. If you walk differently, you talk in a different manner, your accent is different and your culture is different, they are going to have prejudices about you. These judgemental people are just to demoralize you and to make you stop half-way. Take their judgments as a negative motivation and push yourself into your work with more focus.
The only thing you can do is to do your work, whatever, the way you like and not giving any heed to their taunts and judgments. Your work will speak for you.