I want to buy a fitting mirror and stick it next to the wardrobe, but the mirror is facing the door. Is it Feng Shui?

Well, if you want to buy that kind of fitting mirror and stick it next to that wardrobe, even if the mirror is facing the door, it won't affect the feng shui, and it doesn't matter. First of all, you should consider this place where the mirror is attached. Can you face the light? Sticking a mirror mainly depends on whether there is light. Then, if you stick the mirror on the side of the wardrobe to ensure that you can have a good look at the mirror, of course, and this direction will not affect your Feng Shui, you can rest assured.