My anxiety is high these days

My anxiety is high these days Guys i want a very good and strong advice.I am afraid to read in class and my biggest fear is that.I am a mild stutter and most times i speak good and they don't even know that i have this problem.I am going to school with a high anxiety and all day I'm thinking that i will stutter in class and I'm praying to the god that the teachers won't point me to read in class.I know it sounds stupid.What should i do? Should i tell the teachers that i stutter so that they won't point me in class? Should i believe in myself and do my best? usually there are only 3 teachers that tells us to read in class.Plz guys i want your help