I'm trying something new now, which is to just relax and let go. And to not make "acting normal" the point, but rather, just engaging with NTs and just consenting to be sociable.
It's a subtle difference, but it allows me to stop trying to force anything, which helps. I tell myself that if I happen to act a little Aspie-ish, that's fine and I should forgive myself for it. Enough people know now that they generally understand and don't give me any trouble about it. I've been a kindly and sociable Aspie to begin with too, so this all came together pretty easily for me.
I used to think I could just make myself act normal, and I have a whole toolkit of behaviors that I "feel like" are normal when I'm using them.
But I've started to see ASD as something which also filters and distorts my own perception of myself and the social world around me, and that has opened up a whole new set of realizations for me. I used to think I was perceiving myself and the world correctly, and just felt uncomfortable with both; but it goes deeper than that, and I don't think that's true anymore. I think Asperger's actually hides the true nature of the problem from my conscious mind, and I can't tell exactly what's really happening when my only perspective is from the inside looking out. So maybe I never know what my Aspie moments really are in real-time, only in hindsight.
I'm a mild Aspie, but lately I've also been figuring out that I feel a lot more normal on the inside than I probably seem on the outside. I hear my own voice, and I feel my own movements, and I reflect my own thoughts, and to me they all feel "robust" and well-formed. I feel like someone who is capable of speaking and interacting smoothly, and has confidence and charisma. But that's not what comes out. I feel like I'm a normal person who has interesting things to say and just gets anxious sometimes, but when I watch or listen to a recording of myself, suddenly I think, "wow, this person is obviously a little different..."