It really sounds like you need to start over fresh. Take it as a learning experience as a newly self employed businesswoman so that you know what to watch out for in the future. My first year was sheer hell and my very first clients took off without notice or paying me for the last week of care. I knew where the Mom worked and asked her for the money about 3 times then just gave up and never looked at her again. I'm still mad and that was 4 years ago, but I certainly learned about getting a deposit up front and having a no-nonsense contract and payment plan.

For the child who is not adhering to your schedules and routines and the disrespectful parents, get rid of them. Interview your little butt off and find some great people and replace them ASAP!