Stuck in creating content

I agreed to do a presentation for an organization and at the time was excited about it. That was a few weeks ago. I have to send them the presentation this evening and I have no idea what I want to put together.
C-presentation due today
T-I have no idea what I want to create
A-spin in thoughts/ask for coaching/not create the presentation
R-more overwhelm/no presentation to submit

C-presentation due today
A-create presentation
R-create a presentation that will make a valuable contribution

I can’t seem to figure out a thought that will help me..