Everyonez at my school thinkz im mutez?- qwq

So I dontz rlly talk at all at school becuase i haves social anxeity and i have a speech impediment so itz rlly hard 2 talkz but i never thoughtz that ppl would actually have thought i was mute and stuff but the thing is is that everytime im going to tellz someone the conversation instantly shiftz and idk what to doz. Even the teacherz think im mute so they dont call on mez-.. (◞‸◟ㆀ)