Bipolar help needed any info welcome?

i have bipolar or a similar illness - every doctor says something different. apparently i am extremely medication resistant so none of the 40 different pills i have been given have had any effect. so i was wondering if there was a natural way or over the counter way to help manage the symptoms a little better. i am not asking for a cure i was just hoping that somebody knew if something like getting more vitamin C or something sometimes help bipolars. or something to help improve dopamine receptors or anything like that. i spend about 95% of my time in the depressive state - not sure if that matters. so any info you can give me would be appreciated.