How do i implement this business idea?

[Ayokex]

I need someone to give advice on how to go about implementing a particular business idea. I just got that juicy idea and I'm very certain it's going to turn into a lucrative business but I don't know how to handle it because it's like big to me. The idea is on information Technology that has not been invented in my country before. I'm thinking of sharing it with some people but I'm afraid of people hijacking it from me. Though the business requires huge capital that I may not be able to finance on my own. I'm thinking of consulting a business consultant to give me some useful advice but I've not seen anyone I trust. One of my brothers even warned me of divulging such a thing in like that because someone may steal it. Please how do I handle such a situation because I don't pray that the idea should die with me?