You are a little crunched for time. Do this-do the kaplan videos and take color coded notes real quick, up the speed on the videos. Then teach your reflection everything you learnt like you're explaining to an ordinary person. And alongside, race through all the mnemonics in FA for biochem diseases to help you identify whats what when you see a question. Don't sweat it, but don't put all your eggs in one basket like a qbank...