Life just comes easier for main characters. Their life is simple, uncomplicated. Their problems seem to fix themselves within the time span of 20 minutes to 2 hours. All the pieces are in place for them. This life is desirable. Everything seems to work out for them unless the writers have any guts and actually write something interesting. We are all living as supporting or background characters, so do something interesting to get a spin off; and follow these steps to live life as a main character.
1. Have friends who know everything to explain stuff to you.
Being the main character means it's your job to ask questions about stuff because you know basically nothing. Surround yourself with friends that can give you information on the important details of the story and "naturally" deliver exposition on what's important but not enough to give the ending away.
2. Be embarrassingly stubborn until you learn your lesson.
Every story has to have a conflict. Sometimes that means you have to totally change your personality, align yourself with the wrong people, and just be a total jerk to everyone you know. This is necessary so that when you see you were wrong you can say "I was a jerk" and everyone will like you again. Do this all the time in an embarrassingly obvious pattern forever until eternity.
3. Have some interesting feature that makes you different.
Look at the people around and find what no one has. Obtain that thing and make it super obvious. This could be a physical trait or a personality trait. Soon everyone will know who you are making it easier to create a story. It takes forever when you have to introduce every character, so if they already know who the story can get started faster.
4. Make enemies.
There are two specific types of enemies you need to make: the leader of the bully friend group (all around bad person but not evil) and the super evil person who wants to kill you or something. Have several run ins with the bully character and then nearly escape death with the actual enemy every year or so.
5. If all else fails, die. then someone will write a story about you.