When I was in college, I used to frequently change answers on tests. Almost every time I ended up changing a right answer for a wrong answer. Studies have found that abut 80% of the time we change right answers to wrong answers. I only stopped doing this after one of my professors would go over my test in front of the class and point out the number of times I did this. So, I stopped changing answers on tests but I then caught myself analyzing things and using a pros and cons list or getting the opinions of a number of people, to help me to make decisions. None of this seems to work. I have come to believe that my first impression is the best one to go with. I have had to learn to recognize my first impression or intuitive understanding of things as I can quickly think of another answer and tell myself that it is my first impression.
I believe that our brains have stored lots of information that is ready for us when we need it. We just have to trust these first impressions and act on them, even if we don't have a paper trail of how we came to this understanding. Try it and see what happens.