What comes to mind: stalk the people who are on top of things and are having a good time.
Assuming the UMDNJ program has you in med school classes, you'll have lots of med students around you, asking legalistic pointless questions in class, complaining about exam questions, reciting whether question 23 was A or B, arguing with professors about whether things are fair, posting on facebook every half hour how many slides they have left to review before 2 am. Etc.
Ignore those people.
Find the ones who are enthusiastically focused on the content of the courses. How to find them: go join the crowd reviewing the freshly posted exam answers. Pay attention to the conversations around you. Somebody will say "how come foo6P isn't correct for #23?" and if you're lucky, somebody will answer with enthusiastic focus on the content. Not: "it's on slide 14". Not: "Smith said it in class". Not: "that was on the old exams". But: "it has to be foo6P because it's too early in the cycle to be a 3 carbon, and remember how the acylation on the previous step set it up for phosphorylation?" [completely fictionalized response intended to show a quality of interest and accuracy]
Like they care about having the right answer. Like they want to learn the content now, for reals, so that board prep doesn't suck.
These people: find them. Be like them. Get them to let you study with them.
Best of luck to you.