In the end, I didn't sleep a wink and took the day off work.

I started working as a new employee five months ago, and I live alone. For some reason, I can't fall asleep and end up staying wide awake until morning. I try to sleep, but the anxiety of not being able to do so—combined with the intense fatigue I feel when morning comes—makes me think I’d only be a burden to everyone at work, so I ended up taking the day off. What on earth should I do?