I need help, how do I clean a really messy room

I've just been depressed and not been able to deal with it, and it got worse and worse. So my room is just crazy messy and my friend is coming over to stay at the weekend, so I've pretty much don't have much time to get it clean.

My rooms not really big but has everything I own in it, my bed takes up most of the room.

How do I get it clean as fast as possible, I don't even know where to start or how to sort it out