what to do after a bipolar episode

I keep going off on my husband for small stupid stuff and I'm on the verge of loosing my marriage we will be married 14 years tomorrow. but I can't seem to control my racing thoughts and self worthlessness and always feeling so alone even with him and my 4 kids here I feel like an outcast in my own family and no bony understands me I hate being like this if I continue I'm going to 32nd up pushing everyone away and dying alone.