I am guessing from your statement "I have no insurance" that you are in the USA? Being a Canadian, I would not be able to help you there, but, regarding your stress, I would advise calling a crisis line for your stress and anxiety or how to seek treatment for your needs. We have what we call Legal Aid here for people who cannot afford a lawyer's service and find out what your legal rights are regarding the neighbour's disturbances and accusations or threats. We usually find them under government services pages at the front of our phone book. In the mean time, try buying ear plugs. I wear them every time I sleep because I live next to our main city services building which has the city trucks and tractors going back and forth all day while I try to sleep. (I work night shift)

I hope you can find some answers (HUGS)