I wonder what must have been going on in your mind as you decided to spend a night in the graveyard. You are not only trapped in the graveyard but you are also very scared, especially because you have a long night ahead of you. You know that this is not a place where people will come and so you cannot hope for any help. The best thing for you would be to get up and start exploring the graveyard to find things that you can use. Those things can be used to tackle the puzzling situations that you encounter. Hopefully, you will manage to escape.