My only suggestion is to do reaserch, and find a doc who is willing to listen when you say the side effects are worse than the benefits. It's a tightrope walk to find out if there is something than can help. Its my understanding those that have a more genetic predisposition to depression are more helped than those that do not have a genetic cause. From what you stated it seems likely the background is there for a genetic cause. Those I've known are really happy once they have found the right medicine.
Sorry I can't be more help than this but medicine is a highly individual choice and no one else can really tell you if you should or should not try.