Lippnott biochem is the best book. My exam is in end of June and i started studying in March this year. last time i studied dentistry 9yrs. back. Anyways this book is great.all chapters have summary at the end.Tht was more than enough for me atleast.Try some mnemonics to learn enzymes. Inhibiting and stimulating enzymes are very important. So dont waste ur time to learn each and every enzyme.Think bigger rather than smaller thats what lippnott tells you how to do. There are all cycles together like whats happening in liver,adipose tissue, muscle,RBC etc. in starving stafe and full stage in brief.Then go each cycle once at least and write down their inhibiting and stimulating enzymes side by side.Do vitamins and minerals, replication, transcription.Dont get nervous.U have enough time. solve decks for each topic side by side. good luck.