well, it's a good thing you need to take care of your room and the mess in it. You should be thankful to the radiator
You have no idea how much a messy room have effect on our minds.
My advice is: take care of the bedroom now, one thing at a time.
I hope that seeing that cleanliness and order gets you started to do the same in the other rooms.
Believe me: half your energy goes wasted in the mess.
Good luck