>>8081732Getting back into a daily work routine after 10 years away is always gonna be a hard adjustment to make, that's kinda to be expected on some level, especially if you were previously (over-)working yourself to the point that you actually burned out.
Equally, going from what, I presume, was a full-time job during regular office working hours with lots of unpaid or paid overtime that left you working into the late evening most days, to a new mostly fixed-hours job with a weekly alternating day/night shift pattern is also quite a serious adjustment that most folks either don't expect, or underestimate, will be something of a problem.
I'll imagine it's actually this change from full-time job to shift work that's playing a big part in why you feel tired and anxious, on top of the fact that you're even working again; and I'll further imagine that the nightwork side of this new job likely leaves you feeling more tired and anxious at the end of the week than the daywork side of things does?
So first thing to look at would be your daily routine and how you approach getting ready for work both during the day-shift cycle and more especially the night-shift cycle, and particularly whether or not you're getting enough quality uninterrupted sleep during the day before you get up and have a shower and 'breakfast' before going to work on a night-shift.
Because not having a good regular routine with some decent sleep time when you're on a night-shift cycle is almost as bad, if not slightly worse, than staying up late drinking and partying when you have work the next morning, or working all the overtime in the world every single day and not making any free time for yourself to relax and unwind; and if this goes unchecked even for a short amount of time it can easily result in extra tiredeness, anxiousness, starting to feel overworked and/or even feeling a bit burned out.
