How long does it take to get fully prepared for CEH xm

So I'm a beginner in cyber security. I just finished a six month long cyber security course from a local institute in Bangladesh. They just taught basics of each chapter like the penetration test, basics of security, forensics, cryptography but not fully dive deeper just basic theories of each chapter. So with just basic knowledge or you can think of me as a beginner, how long does it take to get somewhat prepared for the CEH examination. If possible please kindly a roadmap and what stuff I should study. Thanks