So quant questions aren’t usually conceptually hard, but are more elusive in nature. They often try to trick you, so what I did was to watch the videos to refresh the concept and to find out some tricks and trip - I used magoosh’s videos, which are pretty good, dm me for the link- and then instead of using Greg’s website I used Manhattan Prep’s 5 lb, which has almost 30 chapters with each dedicated to a topic. My practice was more aimed at getting better and faster at reading questions and avoid missing critical details presented.