Fulmer 401 or SLIC, Science 227. Learning organic chemistry requires you to develop and exploit disciplined study habits. It cannot be effectively mastered by all-nighters before exams. You must study regularly and intensively.
Organic chemistry is both detailed and extensive.
Study each chapter before as well as after it is discussed in lecture. Keep up with the problems. Use the time before exams for review, not for cramming. Organic chemistry is relentlessly cumulative and intensely interrelated. Once you fall behind, catching up is very difficult.