I usually sleep crazy hours, in bed no earlier than 3AM. I also am affected by lack of sunlight and seasonal depression (SAD). Both combined were terrible, I'd

I usually sleep crazy hours, in bed no earlier than 3AM. I also am affected by lack of sunlight and seasonal depression (SAD). Both combined were terrible, I'd get up to the sun setting, and then spend most of my wake hours in the dark. 3 weeks ago I decided to wake up at 5h30 every morning and go to the gym until 7h, when the sun rises. It's been really good and making the most of light hours in this season has been a major boost on my moral.