I feel you so hard, you have no idea. I found the gun quite a while before I got chased, so I was constantly on edge the whole time while I was stocking up on bullets, especially since I saw in the corner of my vision something move as soon as I got the gun. I swear I jumpscared myself when I got into a building because I heard the sound of footsteps and thought I was being followed. Turns out it was me all along.
Then I leave the building and out of nowhere, two faceless silhouettes crawl up to me and almost kill me. I'm actually sorry to say I quit the game then and there. Not because it's not quality (the esthetics are amazing, same for the sound effects and puzzle-like feel of the environment), but because I just don't have a heart for horror games, and this one was definitely doing its job well!