It might sound like a CLICHÉ but your comfort zone is a place where you keep yourself in a self-illusion and nothing can grow there. On the other side if you dream big, work hard on those dreams then your potentiality can grow out of that zone.
Unfortunately many internal and external forces conspire to make us think small. We are raised to be afraid of failure or the social disapproval.
Why limit yourself?
Thinking big is all about attitude. Believe that you can do it and you will be able to do it.
Thinking small leads to living small; thinking big leads to living big. The more you expect out of life, the more you will actually get from life.
So visualize all the steps needed to complete your dreams and start working on them 🙂