You will be able to expand your capability when you are with people who are highly motivated and are building things. Even if they fail, they will be working on something interesting.
Of course, you are the average of people you spend your time with. But also, the books you read, the movies you watch, the songs you listen to, the people whose blogs you read, etc will add to the average of who you are. So you need to expand the possibilities of what you can do, this can be done only when you are truly authentic and improving yourself every single day.