Hey Kenneth,
Tony Robbins, Brian Tracy, Stephen Covey, Jack Canfield, Zig Ziglar, Dale Carnegie, et al are an AWESOME source of inspiration. I’ve listened to/read them all and would highly recommend any one of them. If you’re ever interested in attending a seminar, I’d highly suggest Tony Robbins’ Unleash The Power Within event - it was life changing for me. Landmark Forum is another cheaper, and pretty decent seminar, though some of the participants can be a bit cultish.
If you’re ever looking for inspiration outside of motivational speakers, there is so much good info for you to check out. One great book I’d recommend is Discover Your Genius by Michael Gelb. In this book, Gelb spotlights some of the most extraordinary humans in history and draws out the personal ethics and traits which made them so special. Leo Da Vinci, Queen Elizabeth I, Einstein, Thomas Jefferson, etc. - he teaches you how to model yourself after these people to achieve great things.
Austin