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Search for autism quizzes online. Turn to autism-friendly organizations. Read the work of autistic writers. Turn to social networking. Start researching therapies. Research similar conditions.
Quizzes such as the AQ and RAADS can help give you a sense if you're on the spectrum. They are not a substitute for a professional diagnosis, but they are a useful tool.  Some professional questionnaires are available online. A truly autism-friendly organization is usually run partially or completely by autistic people, such as the Autistic Self-Advocacy Network and the Autistic Women and Nonbinary Network. These organizations provide a much clearer view of autism than organizations run exclusively by parents or family members do. Autistic people best understand their own lives and can offer the most insights.  Avoid toxic and negative autism organizations. Some autism-related groups say terrible things about autistic people, and may push pseudoscience.Autism Speaks is a prominent example of an organization that uses disaster rhetoric. Look for organizations that provide a more balanced point of view, and empower autistic voices instead of excluding them. Many autistic people love the blogosphere, where they can communicate freely. Many bloggers will discuss signs of autism and offer advice for people who are questioning whether they're on the spectrum. Many autistic people can be found in hashtags such as #ActuallyAutistic and #AskingAutistics. In general, the autistic community is very welcoming to people who are wondering if they are autistic, or who are self-diagnosed. What types of therapies do autistic people sometimes need? Do any of the therapies sound like they would help you? Check which therapies have scientific backing.   Remember that every autistic person is different. A therapy type that is useful to someone else may not be useful to you, and a therapy that someone else found unhelpful may help you. Be careful: scammers often target autistics and their families with fake therapies that may waste your money or even cause harm. Some therapies, notably ABA, may involve cruel methods or goals that focus on training you to act "normal" instead of helping you be healthy and happy. Many autistic people have co-occurring conditions that can benefit from treatment. It's also possible to mistake another condition for autism.   Autism can come with sensory processing disorders, anxiety disorders, depression, epilepsy, gastrointestinal issues, ADHD, sleep disorders, and other conditions. Autism can be confused with conditions like sensory processing disorder, ADHD, social anxiety, schizoid personality disorder, complex PTSD, reactive attachment disorder, selective mutism, and others.