For being your first game at such a young age, this was not too shabby at all!
Is it fairly simple and not too complex? For sure yes but was it executed the way one would expect? For me it was. The jump scares although simple did get me at times fairly good even when I expected them. Obviously milage may vary but my expectations were quite low for this type of game.
The most notable thing was I did not encounter any bugs, crashes, or just anything that impeded gameplay. No soft locks were encountered and the game ran fine at least on my computer. So not only did you pull off your first game, you either got lucky or did proper bug checking to make sure to patch all the little bugs that may have occurred.
Solid work indeed and I can definitely vision you improving and making more substantial horror games in the future! Made a video on it.