Tell me about it, I bit off more than I could chew with my game.
So I wanted to leave some feedback. I like your dice mechanism a lot! It's just so intuitive that your odds increase with better dice, even if the probabilities are extremely inscrutable if you don't know shortcuts for doing binomial distributions. But you don't have to, the odds just feel right on a gut level, and getting to choose your own target number reinforces that gambling mentality. I also really love that you can exert yourself and roll more dice by paying life. That was one of my favorite mechanisms from the Conan board game and I'm happy to see it used in a horror context.
My only complaint is needing up to 6 of each die. I'd need a randomizer app to play this but it's still preferable to the d20 algebra of 5e. What inspired your design?