Out of all the games I have ever played, this one has a special spot in my heart. I have watched it's playthrough and beaten it myself multiple times by now, and I can say with certainty that "I Have A Fear" is the greatest game I have ever played. Yes, it might seem a bit sleezy and unrefined in the begging, but when you get into the first piece, that's where the quality of your game starts to shine.
This game is incredibly scary. Yes, you can't hear the monsters unless they are very close to you, which only makes it worse because you know it's behind you when you hear it. But what truly makes the game so scary is the fact that if you die, you have to start from the begging of the piece. This might seem stupid at first, but when you die, you realise that you got so scared for nothing. All of the fear you felt through your gameplay is now pointless, because you have to go through it again.
But I have to address the main point of this game being vent art. Your idea of making a horror game out of your real life fears sparks originality. This game isn't just about the scares, it's also about what you feel and who you are as a person, and it makes the gameplay ten times better.
When I first beat it, I wanted to wipe my memory and beat it again. And again. The music, the gameplay - everything is just spot on. You have truly overdone yourself with this one, and I don't think I will find a horror game that will be able compete with yours plot-wise in the near future.
I hope you are able able to overcome your troubles. And, although I will say that my desire for you to make a new game is incredibly strong, it's important for you to do what you want to.
Love this game.