1. At least 100 people had that idea before you. Or 100 multiplied by the number of years you lived on this planet.
2. Having ideas it’s easy. Implementing them by writing a book or starting a business it’s the hard part.
3. When you’re showing people that you are afraid about your idea being stolen, you just tell them that you consider yourself too superior and smart to waste your time listening to theirs. Guess what… 99% of the cases you will be ignored and no advice will come your way.