Everyone rises some very good points. I learned, somehow, to modify some of my behavior growing up. I had a few friends, and despite being bullied in school did OK till middle school. No one really knew anything about AS back then (1970s 80s) That was in some ways a good thing, since I did have to learn to "fit in" or as my mother often said, "At least try to fit in" Everyone knew I was weird, and smart. I read "Look Me in the Eye" and John Elder Robinson talks about learning human behavior as a child. I can't remember my thought processes like he does, but I do remember being very confused by peoples reactions to me sometimes. I did learn to try not to just say what I thought. People don't like that. I learned not to move or hold my body in weird ways, it made people uneasy. I learned all this stuff of how to monitor my behavior and how to pass OK for basic social interactions. On of the best things for me was I grew up in the Deep South (US) and manners were taught to children. Manners are a nice set of rules designed to show respect for others, and help us avoid conflicts in our day to day lives. I liked manners. They spelled out the expected social norm behaviors for me, gave me a clear set of rule to operate by.
Back to the discussion. Since I have learned about my ASD, I have let down my guard a little, especially around people I know better. No one knows, but I think one person or two has come to the realization that there is more to me than just being a little odd. Even all the "acting" I learned growing up can't make people think I'm "normal" for very long.
I can't undo the adaptive skills I learned to mask my ASD. Nor would I want to. If I did I would be constantly offensive, as I would tell everyone exactly what I think with no concern for their feelings or ego. I would never socialize because I wouldn't want to put myself in situations that required social skills or having to tolerate sensory events that bother me (still a huge challenge sometimes). Then I would not be able to share my interest with NT people at group events like I do now. Without some self control my occasional meltdowns would be nearly constant given the day to day crap I deal with at work etc... My boss has warned me he would not tolerate another outburst of my temper at him. So I could definitely lose my job, then my house, etc...
So Yes I make a lot of effort to "fit-in" to relate to my fellow humans in a way that they can understand, and it does take a lot out of me sometimes. There are plenty of NTs who could use some work on social skills as well, so aspies are not alone in that. NTs had to learn social skills growing up too, they just had the advantage of being able to do it using the nonverbal cues and intuition I lack. I rarely ever feel like I'm "acting" I'm just behaving the way society expects me to. I work hard to better myself. I'm not trying to cover anything up. I'm just trying to polish what is there so that others can appreciate it. I have a lot to give, some people get that, and much to my amazement want me around, some folks don't, and that's OK. But if I don't try, I will never know, and the gifts and talents and knowledge I have will sit idle. And what ever I don't use and apply in the real world will wither and die. I do not like being alone all the time, I like interacting with people, even though I'm not a natural at it. I can grow as a person, even at 43 I am learning all the time. My ASD gives me certain strengths, and means there are some things that I find hard to do, but it is not who I am.