Health question about depression,black cohosh or prescription medicine safest and best?

My antidepresant quit working so i stopped using it about four months ago. now I am getting horrible depression and bad nerves worse than ever before, also starting menopause. The least thing makes me cry and I can not handle any stress at all or making big decisions feel like i am not myself at all and usually an up person but feel like I should have on so many things and do not have a career ect just overwhelmed. can not get in to see my doctor for three weeks. Does black cohosh really work or is it more dangerous than like Paxil or prozak. I do not know someone told me black cohosh may work or take alot of b vitamins as i amy be lacking vitamins since i am a vegetarian. please advise if you are knowledgeable i do not want to take a medication that will make me gain weight. I need advice on safe low side effects antidepressant medication. I cry easy and feel sad and like i should have went to school years ago and gort degree and feel like i mess up alot even thought others say id on not i feel like i do.