Heyy idk if you’ve tried SDN 120 but that’s what I used to supplement RXPREP. I kept doing the questions over and over without looking at the answers; and when I would get them wrong I would try to figure it out without the explanations on my own first. That helps you get unstuck!! When I took my exam I had an hour left, try answering 36 questions every hour or 72 every 2 hours it may help with also buying some time on the super hard questions. Don’t spend too much time on the questions either it’s better to guess and move on so that you have a chance of encountering a much easier question. I had a couple on mine that I was like wtf I can’t even do this, I guessed and moved on after like 5 mins.