It's a feeling that is familiar to any special needs parent, that you are a failure and not doing enough to help your child.  It doesn't help when you get comments, stares, etc. from other parents.  The author of the following article believes that we need to change the way we feel about our parenting and this is what we need to hear from others:

You've done nothing wrong. You didn't cause this. You haven't failed your child. You were given an instruction manual for a Ford and your child is a Ferrari. So, congratulations! Your child is NOT fundamentally different from other children. You just need the right instruction manual. 

The rest of this paragraph is wonderful, and you can read it at this link:

http://www.huffingtonpost.com/brenda-rothman/autism_b_2733094.html?utm_hp_ref=parents&ir=Parents

Do you struggle with feeling like a bad parent?