I have accomplished nothing during the past two months, but I feel like I haven't had a break

Due to a certain situation I'm living at work (for about two months now) I've basically given up tending to all the other stuff in my life and it's really starting to impact my relationships, my mental health and my job itself.

I feel so overwhelmed about all the stuff I still need to do I'm starting to have meltdowns everytime something new pops up (even something as small as a friend's birthday).

Just yesterday I managed to tackle one of the things I've been procrastinating and felt no satisfaction whatsoever due to the huge amount of things that still need to be done and situations that need to be addressed.

I feel I'm only able to handle one "crisis" at a time, and the moment there are two going on, everything else becomes one.

I also can't stop thinking about this whole situation, it's like my brain is constantly active but in the end I can't manage to get me to do anything. It's exhausting.

Does it happen to you too? How do you deal with that?

Edit: thanks to everyone who took time to reply and give honest advice. I'll read all the messages at the end of my shift