Not sure if you have done that already. ISC2 has already training materials. Additionally, I find ISC2's course on Coursera very useful. Try them as well if you didnt yet
The ISC2 official training is very good for this. I have used this for my CC and CISSP and passed first time. I also have the years of experience in these areas too which makes it a lot easier to understand.
Ok it may be worth getting some experience online or something or get hold of a book also. A lot of this is organisational experience for example BCDR or ITIL. You always pick it up if you are working in a business but out of school it will be a bit challenging.
