It is a daunting task, like many things that are time consuming, seemingly never ending and which haven't become part and parcel of daily life - but it can work .. you just have to go really really slowly
Next time you have a sit down break & a coffee come in here or go to other forums and post the first thought that stops you looking for a question's answer or
KE - Knowledge Evidence .. possibly beginning 'where or what - who or how
include the unit number and everyone will try to help out.
I'm not sure how easy it is to get hold of CCLD books from a mobile library scheme - you could see what search results there are for
your County Library .. but trying to locate second hand editions online might be a good starting point
xx