Part time, weekend, night babysitter

My name's Jessica I am a 27yr old single mom. I have a 6yr old boy. I work full-time Tuesday to Saturday in the daytime at a salon . Being a single mom with no family close to help I know how hard it is to find a Babysitter, and someone you trust at that. I am from NJ, been in Miami almost 2years now on my own. I have raised my son with little help. I have a sister who is 10yrs younger who I practically raised and throughout the years from when I was 16/17 I would babysit neighbors kids and friends I'd watch her kids she'd watch my son. I am available nights and Sunday and monday anytime. In my home or yours, wich ever you would perfer. Whether it's just for one time or a back up or a regular basis.. I can provide references if needed also. I charge $9 an hour.. but thats negotiable.