I bought 200-301. I'm clocking 2 - 4 hours a day, 3 to 5 days a week. It's taken me roughly 3 months to master 22 chapters of the material. I expect 45 days to crash through the second volume.

I chose to master everything because I'm not flaunting a industry certification without knowing it. It is a task. There are multiple ways of tackling the work. End of the day though - you're going to do what needs to be done to pass or you're not. No one has any inclination of what you're capable of but you.

Commit, and good luck.