​How to start and trust if I have a business idea but do not have complete means to give it shape and form?

Hi,

I think this is the biggest roadblock I am facing and I am not sure how to mitigate it successfully?

I have this idea! But.. I am not the best person to give it shape and form the way I have imagined it to be. I am a bit afraid that if I spend some money to hire right talent who can execute it the way I imagined, might leave the project halfway with my idea! Yes, I can make them sign NDA but there will always be loopholes and with that someone who got to know about the idea can build something similar(not exactly similar ofcourse).

Please guide how should I go about building my dream product with right talent without having to lose my idea?

Thanks in advance!