Gradually cut out coffee or at least reduce it as much as possible over a period of a week or so to prevent severe withdrawal. Coffee makes many people jumpy and unable to sleep properly. Drink a lot of water. Water assists the body in eliminating biochemical waste. Exercise releases endorphins, natural morphine like chemicals that make us feel calm and contented.
Exercise increases self-esteem, lowers body weight and assists the body to function properly.
Learn how to meditate or some form of deep relaxation. Meditation has many positive physiological and psychological benefits. Avoid foods to which you allergic. This is a key element in any anti-anxiety program. Eating foods that are bad for you causes intense anxiety or depressive symptoms.