Jodi,
Quality of life plays into it. My dad used to always tell me to "get a life" and all of that sht would disappear. He was right in many respects, that the abuse and negativity does seem to stop, where they become more like our subconscious subconscience, alter-ego, rare/faint. 4 years, just wondering if you had some major trauma or event in your life which may have set it off. Nervous breakdown? Bullied? Vitamins and exercise with whole living foods, with a vengeance, can help you to turn it back around, completely, put you in charge, calling the shots, puts them in the background, distant. Daily reminders help; post-it notes, email calendar reminder popups, outlook popups, cd-player alarm clock audio messages. The vitamins and exercise is mainly to get a grip, literally to take charge.
Hope this helps...
Sal