You are having notes with you from your class. Please go through them seriously once again. Fundamentals of organic chemistry which includes-nomenclature (both IUPAC & Common), different electronic effects ( Inductive, Electromeric, Resonance, Hyperconjugation), reaction intermediates(carbocation,carbanion,free radical,carbene, nitrene, benzyne) including their formation,rearrangement,stability,geometry; types of reactions including mechanism; should be prepared throughly with understanding. Try to attempt questions on these to assess your level of understanding on these.

Each class of organic compounds gives some typical reactions. Study them properly, attempt questions based on reactions of each class.

Conversions, word problems will help in applying these reactions.

More you practice more confidence you will gain. Fortunately previous years solved papers are available , if you attempt these questions and then verify your answers, then think over the answer which is different from the given answer, discuss with friends, teachers, this will definitely help you.

Mock tests , and similar tests available attempt them seriouly. MTG's Chemistry Today has good collection of questions from nearly all exams which will be of use.

Keep Finar volume I organic chemistry with you for any doubt on reaction, its an authentic text must for every student of organic. Last but not the least have confidence in self and success is yours.