Martina, I don't know how to help with motivation since it's a huge struggle for me, too. But biologically, I've found I have to have sun hit my eyes in order to wake up fully (getting up is another matter). In the winter that sunshine is a light box. This July has been cloudy so I've started using the light box on cloudy days and it really helps me feel like the world's not crashing in. Wish I could be more helpful!