Hooh boy. Okay, so as a game this is absolutely abysmal. However, for the first project you've ever created, this is actually okay, considering you've had absolutely no coding experience or training before.
The first thing I notice is the Field of View. It is extremely low, even making me a little uncomfortable, though I usually don't notice nor care what the FOV is at.
The next thing is collisions. I have colisions with only three things: the ground, the trees, and a rock. I move right through characters, walls, etc.
Next, the monsters are just standing there in a circle around the player. No context, no reaction, nothing.
Upon heading down the path to the right, an image, more specifically the thumbnail for the game, pops up. This is called a "screamer", and is a very cheap jumpscare. This kind of jumpscare should never be used in a horror game, never mind the fact this particular jumpscare had no context or reason for being there.
It is not only possible, but very easy to leave the map. I just walk up the hills and jump right off.
The sounds in the background have no reason for being there. Just adding in some screams, moans, beeping, and chain rattling, then putting it all on a loop is not scary nor creepy. There has to be a reason for the sound to be there. Sound may very well be the single most important aspect to a horror game, so it is doubly important to get it right.
The player walks extremely slow. No one walks that slow, unless taking a leisurely stroll. The sprinting speed is fine though.
The gravity is good. There is actual momentum, something most people don't get right on the first project.
The characters have animations, even if it is only a basic idle animation.
The sprinting is nice. It zooms out the FOV, giving an additional sense of realism and speed.
I have a few suggestions to improve your skills as a developer.
Make a few little projects just to get some practice coding. Practice makes perfect, and coding is no exception.
Try watching a few tutorials on programming with Unity or talking with some people who have used Unity.
Play or watch someone play horror games --preferably the "good" ones-- and take notes. See what the games do, what gets the best reaction from people, and what people react negatively to.