Turn back from the place you are standing and move forward, now you are facing towards the wall, turn left and move towards the bed, turn left, go near the opened door which is infront of you, to your right you can find a staircase, go near the staircase, you are facing towards the mirror right now, slightly turn to your right and get down the stairs, you can find a closed door infront of you, stand infront of the closed door, that would be your end point.