1. Set your sights in the direction you want to go, and do not stray. It's been proven that you will generally travel in the direction on which you are focused, voluntarily or involuntarily.
2. Know your limits. Push them, sure. But know them. If you try to hop on the steepest slope your first time, for the sake of impressing, you will embarass and likely injure yourself. Take the small steps to the top, and you will appreciate your journey that much more.