Sakura Assistance?

I started Breaking the Habit a couple days - but I'm still not really sure how to write Sakura. So are there any interviews I should watch/read to help figure out his character?

I ordered Heavenly Films last week so that'll be helpful/inspirational to see lots of princess Hyde and Sakura. lol and of course I know the Sakura on a leash video, but any other good ones that would help?

Oh and what was Hyde's nickname for Sakura? I've seen him say Sa-chan, but heard it was actually Yacchan... want to get that down correctly.

Thanks!

(Any SakuHai pics would also be helpful and inspirational)