I started October 1st. I've completed four classes to date. I spent a three solid weeks on Biochem, and didn't pass my preassessment. In fact, I was more confused after the test than before. They're working on adding additional study questions and cohort videos now, in the mean time, my mentor allowed me to pull up another class on Tuesday and I finished that on Wednesday. She then allowed me to pull up another class, so I'm working through that. When I'm done, I'm hopeful that Biochem is a bit more concise, because right now it's a hot mess. My SM didn't want me to start Biochem until after the changes, likely she was worried that I wouldn't finish before the changeover and would lose all my work. I wish she had left me, but at this point, I'm just plowing forward!
I originally had 12 classes to take and I'm down to 8 now. I see no reason why I won't be done in your timeframe, maybe even earlier.