I have to will myself to calm down, take deep breaths sitting quietly eyes closed listening to your body and your heartbeat, mentally slowing it down. Don't allow the stress in to your thoughts while you sit this way. Your method with candles and a good book sounds ok too, I don't think of drinking alcohol when I feel that way, just a cup of coffee does for me.
I've been feeling ill and stressed for the past six weeks or so and I'm not good at sitting still, but it does work, and remember, tearing your hair out isn't a good look.