What's the best way to clean your room?

Especially when a lot of stuff doesn't even belongs to your mom and due to those things...you don't have enough space in your room. She won't even listen to me!!! I always try telling her not to put those stuff in my room... I mean seriously.... what am I gonna do with a broken clothes rack? She won't even allow me to throw it away. Then she accuses me of being rebellious. Seriously, where is the justice in that? Why did she even give me my own room in the first place? To make it into her makeshift stock room> If so, you shouldn't have given me my own room.....