Stutter

Stutter I usually stutter when im anxious and overthinking , certain words , when put in the stop and on the call and I don’t know how to say this but i stutter Infront of my dad , not anyone else be it my family , friends or people i deal with. else im quite comfortable barring this . i know there is not any medicine to cure stammering but how can I prevent it and live a normal life , because anxiety and stuttering is the worst combination ever.