If the book doesn't work for you and the thought of expanding your perspective of your own issue terrifies you then just don't read it lol
Plus, being told that you need to change who you are in order to accomplish anything is the most insulting thing I could possibly imagine.
Yikes. I'd feel sorry for your therapist. Not everyone is capable of accomplishing everything, we all have room for improvement, and there may very well be a need to 'change who you are' in order to reach a higher potential.
If you can't understand why this is at least a moderately insulting gesture, regardless of who you receive it from, then you don't have any right to be commenting on how someone with Asperger's Syndrome feels about something.
Is this a direct result of the syndrome or something? If my parents gave me a job called "Getting a Life with Social Anxiety", I'd probably appreciate the fact that my parents are legitimately concerned about my mental health and are actively searching for advice to give me. I probably wouldn't take it as a "forget you" because my parents have raised me under their roof on their dime for almost two decades and have expected nothing in return. Much less if I was mentally handicapped at that.
If you ask me I reckon OP should feel lucky that he even has parents that give a stuff about him considering a sizable amount of children don't.