This is extremely helpful! I agree with everything here. I used to work retail too, and it helped tremendously. My speech therapist calls it "turning your voice on" the more you talk the better or more comfortable you get. Quarantine and isolation has also affected my speech too, because I don't talk as much and as often. They way I get around that is read out loud too, I read my work documents out loud. I talk to myself or take any chance I get to talk to anyone.