I recently shared the stage with a speaker who simply quoted best-selling authors. He kept citing studies conducted by other people and articles published by "experts". There was not a single personal story or even his own impression of the information.
This does not mean you cannot quote others during your presentation, as you do not just want to make your talk all about yourself, but you must find the balance. If all you have is other people's insight, then why are you on the stage?
Have A Great Day.