Pitch Black

You try to stay calm... however, it doesn't work all that well. You freak out, run around, and end up getting yourself even more hopelessly lost than before... You're in a room with two doors and a window. There's also an antique armoire that you strongly suspect would fetch a high price at an antique show. Sadly, no such antique show is around, and you are forced to make a choice. What do you do?