> For the first time in my working life, I HAVE to be awake at a certain time This one on its own is (for me at least) far more important than the exact time w

> For the first time in my working life, I HAVE to be awake at a certain time This one on its own is (for me at least) far more important than the exact time when you go to bed/ wake up. Having the steady rhythm of life gives you the feeling of control and reduces anxieties, and you'll almost certainly feel better after some time. I used to work nightshifts in the data-center for a while and I would sleep during the day and it worked for me just fine. On the other hand while in the army I was getting up really early (4.30am every morning) every day, and again it was working great for me (after some adjustment period of course). So two completely opposite schedules, but both very strict and regular over the 6+ months period, and both made me feel very energetic and healthy. However, as a student I also briefly had a job with the weirdest floating schedule where you'd one day work a morning shift, then in the afternoon next day, then a nightshift, and then you'd have a free day afterwards. That one was a disaster, I just couldn't get used to that schedule. I gained 20 kg in 6 months and felt sleepy and tired all the time. Routine is a good thing.