Hey. Welcome to year 11. (I moved into year 12). This thread belongs somewhere else but anyway. Choose a colour that doesnt make you:
-sleepy
-bored
-annoyed
-remind yourself of your worst teacher
-distressed
like something light or white.
Why not have a room with maths formulae painted everywhere. Every formulae. On the ceiling, you can have trignometry formulae, on a wall, you can have area/volume formulae.
Only joking. Stick to the one-coloured. Dont choose black though...
That'll make you study.