I passed my clp with 3rd class for my first attempt this year. Clp is not really that hard because past year tend to repeat and I only studied two month before the real exam lol. I guess I got lucky because one of my friend that study together with me didn't manage to pass, I'm fairly certain that under the third class category they actually handpicked the ballot. My best tips to all new clp student is never study everything in clp because it's impossible, pick hot topic to study and pray you will score it.

I have some materials left but I would doubt it will be of any use if you already registered to attend classes as material will be provided.