You are anonymous, male or female may differ in techniques to improve publepc speaking or acting in this case Stage jitters,
You are you with family, they are audience,
You are yourself with a few friends,
Same with vacant stage, you are on stage or set with persons in the group acting, not us, there may be ten or a hundred or a thousand persons watching, they are watching the characters, not the person,
When you walk down a street or in a mall, does everyone stop and stare or listen to your personal ramblings, no? Same with stage, no one is concerned with your presence on the other side of the wall, just the director and crew or other participants.
If you are good at knowing your lines from script to memory, and have clear loud voice, and stage presence and role playing skills, then it may not matter what anyone else thinks or you assume they think,
Fears and phobias, well, that is who we are and why individuals are different, some folk fear closed spaces, some fear large open spaces, some can’t handle being alone, some can’t handle being crowded in,
The stage is just a space, a floor, you could justvas we’ll be in the hall chatting, you can ignore people passing by, it’s near the same as being on stage, you are still yourself, doing what you do, not much difference except knowing your lines and characters expressions,