The future isn't just a place you'll go. It's a place you will invent.
Words that are carefully framed and spoken are the most powerful means of communication there is.
My best advice is to not start in PowerPoint. Presentation tools force you to think through information linearly, and you really need to start by thinking of the whole instead of the individual lines.
Your ability to shape your future depends on how well you communicate where you want to be when you get there. When ideas are communicated effectively, people follow and change.
Some people rehearse to a point where they're robotic, and they sound like they have memorized their presentation and didn't take it to the next level. Going from sounding memorized and canned to sounding natural is a lot of work.
Phrases that have historical significance or become headlines don't just magically appear in the moment. They are mindfully planned.