this is really impressive for a completely new dev making a game in less than 2 days. Some advice i would give is to try and start smaller, if the engine your using allows for 2D games then start by making a bunch of really simple arcade games to first learn new skills and then you can attempt a larger scale project (3D). Another tip is that the game has a lot of great atmosphere however this could be elevated to the next level with some ambient sound such as wind blowing and floor bords creaking and some footstep audio (sound design is key). And my final bit of advice is always put a tutorial because I didn't know what I was doing until I quit out and read the description. But still great work for a beginner.