I totally understand where you're coming from - or at least, I can see what I would be thinking in your shoes...putting yourself on a video puts you in a very vulnerable position and you're not used to it. But it seems like your sister is right - you have a lot of experience with a special set of skills that could really help others. You're almost there! Put it out there! Of course it's scary, but think of the time and effort you've already put in! I detest the sound of my own voice. I think everyone hates their own voice, but no one has ever told me they hate my voice, so it must not be that intolerable. I'm sure you don't look insane. Can you take it down if things go horribly wrong? Maybe think of what the out could be if you decide it was a bad idea and that will allow you to put it out there. You can't fail if you don't try, but you can't succeed either. Courage! And I for one am really impressed you did a course...