Groupthink in itself is kind of stupid, in my opinion. It's normal during your teens and early twenties to want to "fit in" to something. Fact is, the more defined a group is, the more they will pick you apart and exclude you. Aspies seem to be notorious at breaking social molds, so your best bet is just to look for some people who are just people, and don't want to define themselves by anything.
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Given a “tentative” diagnosis as a child as I needed services at school for what was later correctly discovered to be a major anxiety disorder.
This misdiagnosis caused me significant stress, which lessened upon finding out the truth about myself from my current and past long-term therapists - that I am an anxious and highly sensitive person but do not have an autism spectrum disorder.
My diagnoses - social anxiety disorder and obsessive-compulsive disorder.
I’m no longer involved with the ASD world.