Hi, I know how you feel. I always hope that what services my son receives is enough. I do feel they are. You have to remember it is not always how many services as much as it is the quality of the service. We have a 1:1 all day but we have had some people who are just like babysitters because they don't know behavior intervention. Then we have great therapists who teach my son and help him gain independence.
I have been advocating for my son for years and have found the PAI (Protection and Advocacy) book my best resource. It tells you about all the laws regarding special ed in California and gives you the codes, state contact phone numbers in a easy question and answer format. It even gives you sample letters to write for complaints or request for specific services. It is free or you can give a donation. Their number is (800) 776-5746
I also have a great lawyer who's managing partner has a special needs son. They are located in Los Angeles. It is called Martin & Martin. /www.martinandmartinllp.com
My lawyer is awesome. His name is Chike Oniya.
Good luck, and let me know if you have any questions. A.