How can I make my room goth?

Ok well I want to make my room gothic and I want to know how. I have a big room and a big walk in closet. I have a vanity but I am getting a new one and a book case/ thing idk what its called because it has it has 2 big drawers that i put my pj's in and a door with shelves inside to keep my doll and her things. And beside that is my bed in frount of my window with my night stand on the rightside. Also it dosent matter for the price range because my dad is getting me a new vanity wheather I want one or not and I am getting rid of the one thing and getting another one only its bigger and my sisters. But my dad is going to give me a few hundred dollars to spend on my room so plz helpp. And thankyou for your answers.