How to overcome social anxiety---tranual?

Heylo all...I'm a pre-op mtf living in a place where no one has any awareness of tranualism....but they do recognise my mannerisms of a girl and tease me...so I feel really nervous and try to be some one else....... over the years this has led to social anxiety...I try avoiding people because I dont want them to tease me...but I don't want to pretend either because something or the other always leaks out........I also feel nervous in interviews because of this as they expect to see someone else in me and are completely unaware of gender identity disorders.........is there any way I can get over social anxiety and yet not reveal to others that I am ? please help me out...