Why not change where you live then? If you don't like the uptight soccer moms (or society moms?) you're not going to like them any better as your kid grows.
Now of course you can find your tribe anywhere, and maybe you just need to find a way to make friends with more down-to-earth mom's like yourself.
Try your son on phosphatidylserine - one trial showed it worked as well as Ritalin in children and has none of the side effects. There is a prescription form (Vayarin) but may be cheaper as a supplement (I've used the Life Extension product for patients with good results). Summer is a good time to try.
As for focusing on what other people have - you never know what goes on behind doors. Some of those women may not be as lucky as you think. The key to happiness is appreciating what you have. And you are a smart woman - if you want more, you can get it yourself - it may take time and effort but you can. Think outside the box.