Your biggest enemy is not your competitor.
Or a newbie changing the world.
Or a viral trend you missed.

These are parts of life.

Your biggest enemy is someone who tells you that it is impossible for you to think beyond what lies in front of you. 

They make you think small because they want you to be, even if unintentionally.
You cannot move further.

It could even be your closest friends, family, or yourself.

Anyone who tells this to you is the one you should move further away from.