I understand want you're going for with the fog. I think you should keep it. It fits with the theme of the game and doesn't really harm the gameplay. It just doesn't make for very appealing promotional material..

Ok so I played for a bit and noted a few small issues:

• In the settings menu, it's not clear to me if "Post Processing" is on or off. Does red mean on or off?
• I don't think I should have to read the itch page to learn how to play the game. I'd much prefer if the instructions and controls were taught in-game.
• I was a bit confused with the phone at first. At the moment if you look straight ahead, the phone is halfway visible at the bottom of the screen. At first I thought I chose the wrong resolution and that I couldn't see part of the game.

Other than that it's hard for me to give feedback because, from want I understand, the game is not supposed to be fun. It would kind of go against the theme. I feel like I'm at the mercy of RNG and will most likely lose every time, but that's probably the point. And I don't think I'm in the position to say how good of a representation of mental health it is. 

Personally, I doubt it's even possible to create a piece of art that accurately represents how it feels to be depressed/anxious. This is an interesting attempt though, and it may help some people.