Being shy...

How can i stop being so shy ugh im starting a waitress job at a sports bar and we have to wear revealing clothes which doesnt bother me just the fact that i have to talk to people make me nervous. ive always been shy but now im a single mom n no job has hired me just this one so i have to do what i gotta do.. but im just shy i dont like talking to people i dont know any tips.??? ill do anything for my baby so pls any tips to not be shy :/ and also waitressing tips this is my first waitress job.