so u keep tailoring urself to ur brother, and doing something with a thought in mind, what would or would not he do. instead of thinking, what u, as a person, want to do. maybe i am wrong, and forgive me then, but isnt it the key? u are PLACING urself in ur brother's shadow, even as u behave like wanting to be out. u are trying to compete, instead of living ur own life. please forgive me if it stings. it wont be an easy thing to fix, too. u've done this to urself the entire life, after all (and its not autistic exclusive problem, many allistic people have that sort of thing).
i have to admit i cant possibly have an idea what u feel, because i have been the ONLY person in my technical generation of the family for nearly 15 years, and then i'd be more of part of team adult, due to age difference. i havent had a sibling thing. in other hand, that means i'd be excluded from both elder generation (because kid) and kid generation (because way too older). something somewhere between. so fit for an aspergerian in full allistic family, ya. maybe its for the better.
so all i can hope for here, is that this brash post would help u somehow. snap u out of the pattern. i am not offering answer, because i never had to find it. some books would. but u gotta find and read them. i wish u success in this. guardian demon, out.
_________________
sanity is a prison. insanity is doom. is there a third option, please?
beware the ire of the patient ones!
and if i walk away, who is gonna stay? i believe to make the world be a better place.