For sure I would try. But I would do a lot of things differently. People are afraid that their idea is so revolutionary that everyone want to steal it from them. The truth is, that idea i 1% and 99% is execution. I would talk more with people and potential customers. I would probably even talk with my competitors about cooperation.
But to be honest.. even that I made so many mistakes, I am sure, that at the at I was very happy that I tried. I learn a lot of things in the process, unfortunately in the hard way, but still I learned a lot :)