Did you know there's a site specifically for curlies in the UK?
Curly Hair, Curly Hair Cuts, Curly Hair Care, Curly Hair Products, British Curlies
You can probably find advice regarding products there.
If you don't want to buy the book, you can learn all about the CG method here:
CG Method, Curly Hair Care Tips, British Curlies
How to Follow the Curly Girl Method for Curly Hair: 15 steps
Waterlily716: How to Follow the Curly Girl Method - YouTube
This channel in general is helpful. You should go through the curly hair basics playlist:
waterlily716 - curly hair & beauty @:-) - YouTube
Also this site was so, so helpful to me in terms of learning about how things like my hair's properties and weather might affect it. It also helped me figure out what ingredients my hair likes and aids in choosing products:
Good luck! Your hair will definitely be more moisturized and less dry if you go CG. I have very dry hair too. It need a hit of moisture everyday and I co-wash every other day.