support groups in Carshalton

Hello, after 4 years trying get an assesment, my 7 year old daughter has finally been diagnosed with ASD, she also has dispraxia. I am in the process of finding parent's group or any information on therapies that have worked. At the moment I'm trying to find private Speech and language,social therapy and a math tutor for her near sm5. Any help will be appreciated.thanks, Claudia