Hi and my apologies for the late reply!
The Clinton Community College course was definitely challenging, but also (in my opinion) fair. The instructor gave a decent amount of extra credit as well.
Overall, I probably spent about five hours per week on the course and achieved a high A (about 98% after factoring in extra credit) in the end. For me, less is often more when it comes to studying. I read the chapters, took the quizzes/exams, did the assignments, and only referred back to the text when I got an answer wrong. I reviewed for the midterm and final strictly from the quizzes and chapter exams--and usually just an hour or two before the (proctored) midterm and final exams.
For more difficult points or for streamlined clarification, I also used the free online organic chemistry CliffNotes
Hope this helps!