I want get myself an official diagnosis on ADHD and an answer regarding whether I’m autistic.

Typically, a “10 minute test” takes me several hours. I spend a great deal of time contemplating the questions, filled with indecision. So I want to fill out the test before I even get to the psychologist’s office.

Which is why I plugged “official ADHD test” into a search engine, and got overwhelmed by the choices. And my main questions are:

• do some websites offer a test they inaccurately describe as the official test? (If so, do those show up high on search results?)
• do some websites offer the official test… and also augment the test with extra resources that help a cripplingly indecisive person answer more efficiently? (That would save me time.)