One week left till Google phone round, how would you prepare?

Been doing LC last 5 months. 300 questions done(200 mediums, 11 hards rest easy) I can solve most mediums. Harder mediums I still struggle. Hard problems also struggle still. Completely skipped topics like maths, tries, bit manipulation. If you had 1 week in my position how best would you prepare? Location: UK It’s for l4. I am thinking to just re-do leetcode 150 and just drive concepts home. Rather than try any new questions. Not sure if that’s the best though.