I do the same thing Solson124, turn off everything at a certain time of night. For me, getting enough sleep determines how motivated I will be the next day.
I started working out a few years ago, at first it was an option, an if I felt like it that day kind of thing. What got me into a routine was making it more of a priority, not an option. I started working out at the same time every day. It was part of my routine, and not doing it felt like something was missing. Then I started looking forward to it, now I love it. I'm not sure if it works that way for everyone, but I have seen it happen in other people as well. Those who stick with it usually have designated days and times to work out. Having a work out partner helps a lot. A few of my friends started working out in a group, they keep each other motivated each day to go. Also, I started with something I felt comfortable with: swimming, running, if I get bored I would stop. I've definitely gotten bored a few times, so I learned how to lift weights, found new programs and ideas, whatever keeps your mind engaged in the process.