Thats actually really good advice. and something that a few of my classmates could probably benefit from.
As far as ways to study, through basics, my group would get together each day and just quiz each other on the stuff we learned. looking at what was highlighted in the books, stuff we thought might be on tests, etc.
Now, through non-radar, we split up into groups of 2 or 3 and practice running strips. passing inbounds, clearing departures, resolving conflicts, etc. only a couple strips at a time. we have started running problems in class, so we are rerunning them when we get home if we didn't do well.