Being timely; how might I?

I planned my latest assessment submission ahead of time in readiness to shoot the video and hopefully require little editing. How full of dream I was!

The unedited video exceeded 40 minutes, with sections that were captured but automatically set as cut (video paused but keeps recording); my submission must be below 10 minutes. After the automatic cuts I was at 25 minutes, was in a world of pain.

Despite my best efforts I’ve only gotten the video down to 13m25s, and in no longer sure I can cut anything. I’m now faced with having to reshoot and restart the editing process again. How do I avoid ending up where I started at? Presenting is not one of my skills nor something I particularly enjoy, nor am i a quick speaker, so shorter presentation lengths work against me.

How am I going to get across that which I need and at speed? Ugh. I loathe this.