Imagine that you are watching a movie and you know all the main characters in the movie. The most important character in the movie would be the hero or the heroine of the movie and there are few other people along with the lead characters based on which the movie is running. Any movie has a lot of extra characters in a scene to add reality to the movie scene. Now let us say that you are watching all the people that are extras in the movie. When there is an important action sequence going on between main characters, their might be lot of other people lot of other things that might be happening in and around those characters like in the real world.
Now assume that you started focusing and concentrating on these extras in the movie who are inconsequential and irrelevant to the main plot of the story and you started thinking about them analyzing their actions, activities and what they are doing instead of focusing on the main characters and the leads of the story . By the end of the movie you have lost the plot, you have lost the enjoyment of movie, you didn’t make any sense out of your time and you you leave the theater dissatisfied.
Similarly, in real life you need to pay attention to who you are following, who you are listening to, who you are watching, who are your role models. Watch out for people who matters so that you would not be mislead. Take suggestions and criticism from people who are in better position than you are, people who did what you are doing and who want what you want in life. Rest of the people are just side characters who you need to ignore as much as possible and stay in your path.
*Do read the Disclaimer