Thanks a lot for the video! Sorry you could not had the best experience. The light in the lantern starts to fade after some time, in your gameplay it was really dark so that makes it difficult, try to find small jars to recharge lantern.
The key was a bit dark and hard to find to be honest, but it should be near some scary place for example skeletons or something like that :P.
Anyway thanks for playing it and i hope you give the game a second chance to have the experience we intended when people played it!