How To Handle My Fear Of Disapproval?

its affecting my whole life and i even think it’s what sending me into depression. Because if you take away the fear.. i have a really great life. But the thing is, my fear of disapproval makes me quiet so that i dont make a mistake in something i say. (especially when im nervous, i usually end up saying the wrong thing or something really stupid) Also, whenever i talk to people i dont know well or make me intimidated then you can hear the fear in my voice/ nervousness.
I’m quiet -mainly around the other cheerleaders in my squad- so i can stay away from being disapproved. but if i dont talk, or am awkward, and they act awkward back or dont talk to me as much or mention im quiet… then it makes me more depressed and quiet. I know that not everyone’s going to approve of me, but at the same time.. my fear mostly strikes up around people i know i’m going to be with for many years/ a long time.
How to handle my fear of disapproval?