Blanche Ebbutt said this quote

Don't brood; that way madness lies. Don't hesitate, if you catch yourself brooding, to 'take a day off' in the best way you can. Go out and gossip with your friend; get to a theatre where there is a play that will make you laugh; or try a concert or a cinema show - anything that will take you out of yourself. Take the brooding habit in time before it gets too strong a hold of you.