When it comes to the self-help genre, there are some wonderful books available. Personally, the book by Dale Carnegie "How To Win Friends and Influence People" is by far the best secular one around. The Book of Proverbs, IMO, is probably THE best. "The Seven Habits of Highly Effective People" by Steven Covey is also a good book. These books really do teach you how to stop complaining, how to stop blaming others, how to stop judging, how to be humble and taking control of your own life. I think people get into trouble when they focus exclusively on a person. That sort of adulation can quickly become a cult of personality. A personal example from years ago; I bought a book by Dr. Phil called "Life Strategies" a long time back (great book, btw). The folks who chose to do the hard work of working on themselves achieved success of various degrees. The folks who focused on Dr. Phil the man, did not. I went to one of his seminars and there were people there who had the book but who really had no idea that bettering oneself takes diligence, determination and time. One person had "Save Me Dr. Phil" on their shirt. He actually chastised them and explained that bettering oneself was hard work and that there was already a Savior.
I don't know much about Tony Robbins, though I've heard of him over the years. He's been around for quite some time so I would guess what he has to say might actually be the real deal. But again, regardless of WHO the messenger is, YOU have to do the hard work. Simply being in the presence of these folks might motivate you, but you have to use good judgement and you have to do the work because no one can change you but you.