In all honesty being told by the psychiatrist that I have Asperger's was absolutely devastating and I still haven't got over it. I might never.
My level of alcohol consumption etc started rising after that appointment.
Then I started posting on Plank's website, stating things that were ridiculously untrue (e.g. that I am a hit with women, whereas in real life I am sexually inactive), but they all took it seriously and banned me forever.
But it was just another way for me to try and escape this horrible, truly depressing diagnosis.
Sorry, I hope I make nobody else depressed in so saying. But you've got to admit, the prospects are not exactly fantastic.
If you can find a good therapist or support group, you can use the diagnosis to find people that can help make your life better.