about presentations

i'm going to have a presentation in a few minutes to a bunch of senior managers about a role i have just transitioned to. previous person is no longer available to coach or help answer questions. i just finished my material thirty minutes ago - procastinating seems to be a habit these days. i had to drink a cup of coffee because i was just really groggy trying to wake up and think very early this morning. i am really hoping the presentations go smoothly and appeal to them about my "newness" in the role. i'm not really worried though because i've done presentations a thousand times. the problem is i can only speak to what i know, and right now i know very little. hopefully, me being charming works wonders.