I would also suggest meditation, also High Magic, a good ritual to start with is the Lesser Banishing Ritual of the Pentagram.  You need to move your consciousness from your lower self, or ego, towards your higher self, the Divine in all of us.  Meditation and High Magic helps you to do this.  All bad emotions, and many sicknesses, result from being too involved with the physical plane and letting our ego rule our kingdom of our flesh.  The Lesser Banishing Ritual brings the light from the Divine down into your center of consciousness, and helps banish unwanted influences, and the harmful emotions of your ego.  But, your ego will fight for its control, you must persevere in your efforts to meditate and aspire to your higher self.  Nothing worth having is easy, and you have a habitual method of following a lower path, you must fight to replace this with a higher one, and believe me, the joys and treasures that result will be worth every effort.  I wish you the best.