How true is it?

Came across an intersting article from The Star few weeks back. Something about extra luck for exam. Hmm...how true is it? Gotta give it a try to figure out.

1) Aromatherapy; try burning sandalwood incense of oil while studying(wondering what is the smell of sandal wood, smell of wood huh??). It is said that sandalwood helps calm any agitated feelings before sitting for exam (agitated? is it same meaning with stress or nervous?) Also, burn frankincense for poor memory or jasmine for exhaustion. (gotta figure out all these scents from memory land, but i guess jasmine scent would work.)

2) Fengshui; try to get something to attract positive energy. Fish represent success. Keeping them in front of your desk brings good luck. if you cant get a fish, simply cut out a picture of a fish from magazine or newspapers and stick it on the wall in front of you.(shall i replace my leehom poster with a fishy poster??? Will rubber fish works?)

3) Crystal; a few gemstone to be carry around for luck and success purposes. Aquamarine helps release anxienty, fear and restlessness. Citrine helps give mental and emotional clarity, problem saving and memory.(aquamarine? citrine? no idea how the colors look like, I only have pink, purple;maybe this is aquamarine and light green beads on my right wrist. )

4) Food; some people used to take chicken essence for the strengh of brain,(but not me, i felt pretty awful to swallow those dark liquid so called "gai jing"). Some opt for the wonders of sugar. Chocolate should be a popular stuff to load into mouth during study period while some sucks sweets as a form of therapy.

5) The most important which the best of best is to start doing revision not at the last minutes ;p