u/Abject-Day8709

How does one prepare for this final? He said that the exam is 50% gonna be chapters 19-22 but I dont feel prepared at all. I redid the practice quizes and I feel like I learnt nothing from lectures, the questions we did from slides are way easier than the questions on quizes. I did not do well on previous midterms either bc of the long questions. Need advice!!! (Final's on Wed)