Fear of Enough

I have a fear of not saying enough… Im a coach and when I have to speak on a topic (7-10 per week) I alwayyyys get discouraged to even start because I cant gather my thoughts. Theyre scattered, I question my skillset, I cant get the format right, I’ll forget my words, and the worst thought of them all; “I know so much but never seem to execute the lesson well enough to say it all how I really couldve” so I slip into apathy and only do 2-3 half-assey coaching lessons (although the half ass is still GREAT according to my clients lol) but still… grrr I want to just have an idea and be able to remember what I know but I have a terrible memory and really second guess myself a lot