Big Prize Wheel

Using the methods used in video games (timely feedback, randomness, rewards), easily motivate yourself and your family to accomplish the impossible without expending willpower against humanity.
After learning 10 words, use the roulette wheel to give yourself a reward, so that learning can give you more timely feedback.
Your child is doing great? Don't give him rewards directly, use the roulette wheel to give him random rewards. Until he cared about his performance itself.
Lost and don't know what to do? Take a spin on the roulette wheel that you wanted to do as a kid. Start planning for that hit!