Romilda
It'll be fine, that's what the MAB's for, keeping us all safer.
What colour's your couch? Because you can do calming without necessarily going with white walls. Like, try white carpets or white floorboards or something. Plus there's got to be some spell for sorting the colour of your couch out. There's that decorating section of Witch Weekly, or that show on the wireless on Thursday afternoon, they'll have some advice anyway.