I feel that I'm in a fairly related situation myself. A week ago I packed my backpack, and flew out to London to start a startup. Since my parents are not really supportive of me as I'm not "studying or working" in their opinion - I'm mostly on my own.
I've had some tough times recently, especially in the past week. But every time, I just look ahead and see what I can make, what I can build, what I want to achieve. It is _very_ difficult to get anything done if you don't have a clear vision of your future. It's _very_ important to avoid discouraging teenagers and young adults from going on their own path.