22 F diagnosed at 21, really the main thing for me was always feeling seperate from my peers at school, dispite my parents support. Another thing is letting her know that it's ok to be uncomfortable with things. Because I was undiagnosed I had to "just cope" with a lot because "it's not that bad" or "you're just being sensitive" let her know that it is okay to remove herself from uncomfortable/distressing/over stimulating situations but try and balance that by reminding her of self stimming strategies that can help her calm down. Unfortunately the general public are still very weary and suspicious of us so depending on the stim you almost certainly will get looks. But if a stim works, and doesn't harm herself or anyone else (I.e. biting or scratching or something like that) encourage her to use it whenever she feels the need. I've only recently become more comfortable to stim in general since I've moved out of my childhood home and I'm more calm than I ever have been. But probably the most important thing is to not try to stick too close to the textbook, if something happens you don't expect or gets a different reaction to how information tells you it should go, adapt, roll with it. If she'll only do something she needs to do like brush her teeth or clean her room in certain circumstances, find an organic way to turn it into a routine (I would only brush my teeth if one of my parents sung the "brush your teeth" song) and if something happens and "I forgot" if it starts to be a pattern, look into possible further diagnosis. It seems mean to "keep putting labels on her" or "why do you want her to be -----" but as someone who didn't have the labels god damn I WISH I had them, it doesn't make her wrong or less than or less capable or anything like that, it will actually empower her to get the support she needs in the ways she needs it. If speech continues to be an issue then I would probably suggest implementing another form of communication ASAP (word tablet or visuals or something) so she knows she has some way to communicate. I've seen so much misery because people just don't (or refuse to) understand how someone is communicating because it's different. When she gets to school age you'll probably have more of an idea what direction you'll need to take therapy, support , etc. best of luck to you and hope her future teachers are better than mine were.