Movement in Interp - HELP

Okay so I do duo interpretation, and due to anxiety I am both a very shaky person in general but also particularly shaky in round. I get away with it most of the time especially when my character is freaking out, but in scenes where I am being very much a normal guy I still tend to shake, and I wanted to ask if anyone knows 1-how to stop being super shaky (not like be less anxious more like physically get the shaking under control briefly) 2-In interp once. you get past a certain level the how clean or sharp your movements are impact the quality of your.piece a lot so I also want to ask if anyone knows how to improve on that too? I guess really what I’m asking is how to improve body control in general but those are just the two areas I really need help in

Thanks! and sorry for the grammar reddit on mobile is annoying and I’m too lazy to fix it