You are not alone although it may feel like it many times along your journey.
What I found helpful is getting as much information as you can, which includes all different sources, from Developmental Pedis, Psychologists, Teachers, Therapists, yahoo groups and parents who have been there done that. There are many schools of thoughts regarding AS and it can make your head swim! Decide what works for you and your family.
Some website I found helpful (I mostly use the bottom 2):
My friend told me that the first year is the hardest, which I hope she is right as we are nearing the end of our first year as my son received his diagnosis at the age of 4 last Jan.
I can relate to the family and friends thing as my mother's response when she heard of his diagnosis from my brother was "is she still on that?" They all thought I was nuts...which I very well may be, but not about this. I will also have to agree with the prior person's post, wishing I would have kept it more to myself, but I am one who tends to let things out there...so, it is what it is....what I am doing though is keeping it close to our vest with his preschool peers and the parents as I don't want him treated any differently. But that is what we chose as a family, you need to do what is best for you.
Please feel free to PM me at anytime if you need to talk.
oh, and sorry to answer your real question, discipline....i found it to be a learning experience on both our parts. I try redirection, natural consequences, time in the thinking chair (which I was opposed to at first but sometimes he just needs to be left alone), during tantrums it ranges from hugs to saying let me know when you have gotten it all out, to helping him identify his anger and offering appropriate suggestions on how to handle it. He is my one and only so I'm learning just as much as he is....but I have faith we will figure it out together.