According to the website
I don't know which website you are talking about. I assume you are talking about the Oracle website, in this case, probably yes.
Additionally, you write "I have all the material". Well that might sound stupid, but more often then not people think possessing something is actually doing the trick - including me and myself ;-).
Really, be honest to yourself. Read Kathy's book, read every line of it. I once read the advice that you would be ready if you had a book full of colored highlighting that would fall apart you would be ready.
I did that. I was there. I even bought a new version (updated from Java 5 to 6) and that one in the end was just as colored and falling apart.
I did all mock exams I could get my hands on, and all simulators. I passed all of them above 90% or so as far as I can remember.
I have actually even now recently bought version 7 of the now called OCA/OCP book you probably have, I didn't yet have the time to read it, however mainly I just wanted to own it.
I love Kathy's books. And you can trust her. Everything that is in the book you will need. Everything that is not in the book, you will not need.
At the time in 2008 when I did my SCJP, I didn't even waste any time looking on any Oracle pages. Trust Kathy. That's all you need!
Was that clear enough?
p.s.: Yes, I am in love with her books