Hi @mozamel-ccie,
Glad to hear you like my work 
I think you are talking about R&S written? It is a difficult exam. The first time I took it a few years ago, it was easier that nowadays. I did it again 2 years ago to renew my CCIE.
My written course page covers 99.9% of the blueprint:
There are a few small topics that I still have to add. When it comes to studying, once you feel you understand everything on the blueprint, labbed everything, and studied enough, the only way to move forward is to try the exam once.
If you pass it, great! If you don’t, write down everything you didn’t understand during the exam as soon as you leave the test center and look it up at home, get rid of your knowledge gaps. Next time you attempt it, you’ll pass.