Hi guys need some help. I finished reading all my Kaplan lecture notes. Started reading first aid. I want to practice some ques now. I want to do both Kaplan qbank & uworld after finishing first aid. So I have decided to do either usmle Rx Q max or first q & a book along with my 1st aid . Is first aid q & a book enough to learn first aid or is usmle Rx Qmax a must? I have only 20 days time For this. So guys plz help me out through this, thanks in advance 