i, from adolescence through middle age, had dysthymia, un-dx'ed until i was in my late 30s, then the shrinks "discovered" various other things as i grew older [schizotypal/schizoid disorder, ADD inattentive subtype, AS, avoidant personality disorder, tourettes, auditory processing disorder]. strattera helped me a lot while i was able to take it [insurance dropped prescription drug coverage so adios strattera ], it was just about the only time i felt like a semblance of "normal." i have found that vigorous daily exercise [where your heart pounds and you huff and puff and sweat like a pig and are thoroughly wrung out, for 2 hours or so] also helps in a similar manner. at a minimum it makes me too tired to feel anything but ready for the sack. learning mental hygiene techniques also is helpful- the main one is to remember that the human brain can only hold one concrete thought in working memory at any given time, what we interpret as thinking complex thoughts simultaneously really is shifting focus multiple times in a short time, much as what the eyes "see" is really a mosaic of images recorded in the visual cortex over brief windows of time. anyways, with this in mind, if you have a negative thought, it is just a matter of knowing it is a negative thought [because it hurts!] and doing what you would do about anything that hurts, IOW try to stop the hurting, in this case by replacing the thought with another different thought. so everytime i started dwelling on a painful thought i would replace that with the thought, "how is this helping me feel good?" and then i'd switch to thinking about something else, whatever would quickly come to mind. much of the time, this is where the vigorous exercise comes into play, it takes all the power away from the negative thoughts and replaces 'em with the thoughts, "this is tiring! this is hard! i can't wait for it to be finished!" and by the time it IS finished i have no energy left to think of anything else.