Don't be afraid to confide your enthusiasm and fears with your friends.
Be confident in your assertions. Your friends' reactions may initially not be what you wish to hear, but know they do want you to succeed in your convictions. Most often they are still locked into the fear and loathing of corporate society so any positive feedback will be an encouragement. The look on their face will likely be one of bewildered admiration that you are embarking on everyone's sublimated fantasy.
Family is just as unlikely to be encouraging. Remember that they don't want you to make the same life mistakes they've experienced, either first-hand or from some soap opera or b.s.-reality show, the distant-future benchmark of the dark ages and downfall of broadcast media.
To speak your convictions, what has come to make perfect sense to you, will reinforce and confirm your circumstance. Nothing is set in stone, especially in your apprenticeship in adaptable life. Things change with the wind and you will bend like the tree, still firmly rooted.