How does a single mom with bi-polar illness keep a stable home?

I am having such a hard time with my illness. I am 36 and have been diagnosed over 14 years. I have been on every medication under the sun. I am now on three meds. Wellbutrin, depakote and celexa...dont ask because i dont know why. My issue is how do I keep a stable disciplined home with my son. I am starting to feel like Adam Sandler on Big Daddy. I am having a hard time with keeping up the 'I am the boss" routine. I get so mentally drained. He is Leo and that means he is a Leader and always has to have the last word and I am a LIbra we are non-confrontational and I get so aggrevated. Thanks for letting me breathe...