Exhaustion and mental health?

Does anyone feel worse when they're tired and sleep deprived? For a while, after I started working, I was feeling pretty great depression and anxiety wise, but the past week or so has been kinda rough. I wanna chalk it up to me being tired from not sleeping enough and working a lot, but I dunno.

I suppose how I'm doing now is light years better than I was doing months ago, but still, it sucks. Anyone feel the same way? And sorry if this post is dumb and poorly worded, since I'm beyond exhausted, lol.