Hello. Found your other threads now!
I wondered if you'd be interested in my step-brother's experience.
He is high functioning aspergers. He was let down by his mother who really pandered to him and didn't help him learn anything about living in the real world, and refused to believe that he had aspergers. When my mum married his dad (my mum was a SENCO), she got him diagnosed and got him help in school. But school really, really, really failed him. He just couldn't get on, couldn't learn things he had no interest in. He knew every fact you can imagine about the various wars he was obsessed with, but absolutely nothing about the things school wanted him to know.
When he was 16 he went to a special steiner college where they were much more autonomous in their approach, and he thrived. He loved the practical skills he was learning so learnt them really well. He developed an obsession with Russia. When he was at school he'd really struggled with foreign languages. He couldn't apply his memorising of vocab to make up sentences at all. But, he taught himself to speak, read and write Russian! He met, online, a Russian girl and went out to visit her, arranging his visas and passport and transport himself with a little help from our parents. He's now married to her and managed to arrange all the visas and residency permits etc. for her to live over here with him. He got a job in a bank and is now acting manager of a small branch.
There is no way you would have any idea he had aspergers now, other than his slightly odd behaviour sometimes (and who doesn't behave slightly oddly at times!?) - in fact his wife doesn't believe us. But actually it's just his family and the college he went to working with him, with his interests and with his unique strengths, rather than mainstream school trying to mould him to their warped view of what children should be like and should learn.
My mum wishes she'd HEd us all now but was not in a position at all to do so. But she knows that for my step-brother, in particular, HE would have made the biggest difference.
Autonomy means working with what the child wants and needs, not what you want them to want and need. So if your DD is asking for a structure, then she needs a structure - give her one! It'll work if it's on her terms. It's only not autonomous if you're the one imposing it.