yes, take the meds, or find one better for you if you went off it for incompatibility reasons. i'm not intending to be assumptive about why you arent on it, but i just want to say that theres nothing wrong with needing medication; its not a crutch, it can be a legitimate necessity when the pros outweigh the cons.
to take care of the mind naturally, with perfect health habits and routine isnt a possibility for those of us who get into dark places. If it's just getting worse its best to acknowledge its not going to go away soon or easily.