Too much good stuff?

[SHODANFreeman]

The flares has only a bit larger light radius than the glowstick and the red light is kind of annoying, so I never bothered.

It would have been interesting to see how the game played if there was no glowstick at all, and you had to rely on just your limited flashlight and flares. Kind of like how Amnesia is gonna be, I guess.

You could impose those restrictions on yourself in a future playthrough. Maybe even go so far as removing the glowstick from your inventory in your save file.