Take as many tests as u can take, doing so will make u feel comfortable as well as improve ur stamina...i am sure this practice will improve ur stamina also..and must review ur tests esp the question u got wrong or guessed...
for quant, i would suggest u to do as many gmatclub tests
as u can do...they are simply great..
Fire the final bullet only when you are constantly hitting the Bull's eye, till then KEEP PRACTICING.
A WAY TO INCREASE FROM QUANT 35-40 TO 47 : a-way-to-increase-from-q35-40-to-q-138750.html
Q 47/48 To Q 50 + the-final-climb-quest-for-q-50-from-q47-129441.html#p1064367
Three good RC strategies three-different-strategies-for-attacking-rc-127287.html