If you weren't raised in an environment where you were encouraged to believe in yourself, establishing self-belief will almost always be pinned on the people you surround yourself with and the content you are consuming. I really do believe that if you consume my content on a consistent basis that I can do that for you and help you get to where you need to be, even if your mom, dad, brother, sister, etc. has been dragging you down up to this point.
