Lyme Disease Meds for 3 months

I am a mom of 4, married to a wonderful man, and I have Lyme Disease.  My husband works full time, I work a few days a week, and we struggle to make ends meet as it is.  In order for me to get the medication that I need to start treating Lyme, we need $300 + a month.  I have been putting off treatment as long as possible, but I can't keep going like this.  The fatigue is making it almost impossible to enjoy time with my children, my memory is failing, and the migraines are incompacitating.  I want to start treating this so that I can go back to being a happy, fun Momma and wife.