Don't look at or read too much beforehand - keep some surprises for yourself. Wander, accept you'll only see half the bands you want, accept you won't see everything.
If you leave thinking you've 'done it', you definitely won't have.
She's around next summer? Nice.
I enjoyed seeing her at the Royal Albert Hall, which was no mean feat given I had such an appalling stomach ache and spent the whole thing sat down. So seeing her without that kind of chaos would be a treat.