I was diagnosed at age 35, and it's not hell for me.
HOWEVER, I began unconsciously coping with it due to a fortunate series of incidents around the age of 14, so I've been working for it for over 20 years, although crudely, and semi-inaccurately, so that might be why it's not as bad as others. However, as indicated, we really have no system to do this right. I *really* need a body language coach (which I have to wait for some time to earn the money) and possibly acting lessons, as I know I'm still not coming off the way I'd like to, in general. This has affected my career to a degree, and dating to an extreme amount. I've trained myself to understand body language recently, which has helped some.