this is exactly where ive been mate..
i took meds for about 7 years... they either didnt work or they had such bad side effects that i couldnt function at all...
ive found amino acids to be very effective in treating my depression do the extent i feel cured and have no side effects at all.
there are alot of amino acids that are used to treat depression and axiety if your intressted in reading up on them... and you might find its a case of try which ones suite you. but i've found that l-glutamin, l-tyrocine and DLPA have worked wonders..
but dont even concider taking any of them without consulting you doc to confirm their safe with your current meds... but I've never read of there being a bad interaction with any meds
good luck