this. for the vast majority of people, meditation does not relieve stress. its good for other purposes, but not heavy-duty stress relief. and this comes from someone who meditated almost daily for several years.
in general, the best ways to relieve stress follow the rule of thumb: "take care of yourself". sleep long/well enough, exercise, eat right, ensure personal health (go to doctor/dentist, get a massage, etc.), and take the time to do the things you enjoy.