What goes on during an evaluation at an Autisum clinic?

[hahalala]

I'm a 13 year old girl.I had my teacher worrying about me last year(6th grade at a elementary school.) and then my next teacher when I moved.She told my Dad and Gramma(I don't have a Mom.)that I should get tested for attention syndromes and Autisum.I do have eye problems(Cross eyed,eye wandering,eyes turn out,etc.)and have had AD from my brain and eye focusss problems.During 6th grade I was diagnosied with ADHD.I've been going to an Autistic Group for Girls since around when I moved into a new place and it turned out that a girl who lived across from my house went there.I had my first Autisum apointment in October.My next and second one is coming soon and this is a evaluation testing.I'm so nervous about possibly having to switch to a higher Special Education level at my Junior High.I'm at the lowest and half of my friends are from Special Education.I know school is confussing but I'm just so nervous about having to switch possibly. I also wonder how long does the apointment go on for and what type of things is being tested.I asked my family and they didn't really know what is going to happen.School is hard for me and I do believe that I may have a little bit of Aspergers