My insurance covered the test I took. But I have to ask, will an ADD or ADHD diagnosis change the way she treats you? Even if you get on good meds there will still be some things that are harder for you to accomplish than a person without ADD. She doesn't sound like a very understanding person IMO. In my area you can also walk up to a mental health facility and pay like $30.00 to get tested (if you have insurance). I went to a therapist for my anxiety and was told I exhibit symptoms if ADHD and took a series of tests and passed with flying colors. Also found out my IQ is higher than I thought . They say a lot of ADHD people are really smart, it's just insanely hard for them to not have a million things going on at once lol.
I took an IQ test, a multiple choice test specifically for ADD/ADHD symptoms. Then a computer test that tests your reaction time. And a general personality disorder test because some other mental health conditions can aggravate ADHD or even be confused for it in certain circumstances. May u ask your age? It's sad but they'll probably take you more seriously if you're older.