I want to create things, and I do. I can never get myself beyond the point of simple demos and experiments, because I severely dislike working.
I fail school classes, I disappoint people, most importantly myself and I fail to finish simple tasks, only because I do not work hard.
Where do I go with this? I want to create things, but lose my motivation when it becomes hard.
How are others dealing with these kind of problems? I'm sure I cannot be the only person with a paradoxical lazy-ambitious attitude here.
You're probably just spoiled, like the rest of us. You spend all your time around things that are intensely stimulating. Delicious food that you barely have to do anything for, this magical thing we call the internet, beautiful music, captivating movies, hundreds of the most attractive women at your fingertips.
All this stimulation with no effort -- and you think it's a surprise that you don't like hard work?
Having this knowledge, now figure out the solution yourself. Something that you're too spoiled to have done already. :)