Until you’ve rehearsed out loud you can’t truly tell what works and what doesn’t, what trips you up, what’s too complicated, or what just doesn’t sound like you.
A presentation that’s “well done” on paper is probably about 70% done in reality. On average, it takes three to five focused rehearsals for a speaker to really seal the deal — especially when it comes to critical or career-defining presentations.
You’ll probably find yourself editing and rewriting as you practice out loud. That’s to be expected. . . better now than later!