As a previous poster said about joining a support group if you haven`t already done so having two autistic children must take a lot out of you emotionally and you need support and encouragement .
Don`t deprive yourself , be pro-active in seeking out acquaintances who may very well end up being life-long friends
The advice given here on this forum could be the making of the new you
Good luck .And tell us how things worked out for you in the future,