Help with bipolar medication?

jane
I've been diagnosed with bipolar 2 disorder with rapid cycling about 3 months ago and I've tried exercising ( i do enjoy it) and I've tried herbal medicines ( sam-e, ashwagandha,holy basil, rhodolia, ) those don't really seem to help treat my depressive moods. 
I realize you ladies are not doctors, and I am talking to my doctor and psychiatrist about them at my next appointment. I was just tiring to understand them better and have more knowledge.  
I'm terrified to take such powerful medication especially when it deals with the brain, but I realize I need to try them for myself and my husband and our children.