Losing both parents at a young age gave me a sense that you can't really control life - so you'd better live it while it's here. I stopped believing in a storybook existence a long time ago. All you can do is push in a direction and see what comes of it.
Set your sights high, the higher the better. Expect the most wonderful things to happen, not in the future but right now. Realize that nothing is too good. Allow absolutely nothing to hamper you or hold you up in any way.