Individual opinion

Hello Rabbi.
Maybe this is a bit of a strange question, when I examine my opinions I discover that there is no one else in the world who thinks completely like me. There are those close to me in my opinion but not completely like me, seemingly unique in theology, politics, and more. The question is, what is the chance that my opinion is the right one out of billions of people? Why is my personal approach the most correct? What value does my opinion have?