I always always doubt my ADRs and change them several times before our vacation so your story sounds about par with mine. So, you aren't crazy for all those changes. ('cause if you were, then I'd be too and I ain't crazy!

)
I don't blame you one bit for not wanting to get dressed up while on vacation. The fanciest we get is a pair of capris and a nice top.
We ate at the Whispering Canyon last year and loved it. The skillet was so yummy as was the smores cheesecake.
Woohoo for going to Hollywood Studios after dinner! I rode the Tower of Terror last year for the first time and can't believe that I actually liked it. As a matter of fact, I liked it so much that I turned around and rode it again. My kids say I only liked it 'cause they were downstairs waiting for us and praying for me.