I am Confused

There was a time when i loved coffee and could drink anything that was given to me.
But these days, because i have with me .a couple of people who experiment with good coffee, my taste buds seem to have become confused. One day i am drinking good coffee, and the next, atrocious one.
The result is that i have developed some small aversion to coffee.
As long as you are not thinking about something, things go along nicely. But if you start thinking about it, you get confused. Then you have to work on it and gain some expertise, which means, gain some confidence.
Somewhere i read that if a centipede thought about how it walks, it would get into a tangle and sit immobile till some helpful bird comes along and solves that problem.
Is that true?