|Recording a greeting, with cue cards.|
You are probably putting too much work into it all.
If you are very, very lucky, you will find a friend to do this with, and you will laugh together at your small triumphs. ("omigod! the meeting invitation! we figured it out! yes! I DO see you! Hi!!!")
You will realize exactly what your tics are -- me, I move my head while talking, more than the average bobblehead doll.
And hopefully, you will learn exactly how little is in your control, and you will be okay.
Really and truly,