Hi! I found this spell http://www.spellsofmagic.com/spells/wealth_spells/fortune_spells/250/page.html here around on website. You have to chant the following text and learn well you will get "nothing less than A".
"On this test I take today, I will receive no less than A. Earth, Wind, Fire and Sea, As I say, So mote it Be!"
Well in my country there aren't grades such as "ABCD..." only 1 to 10. If I will change A in spell into 10, it will help me get this 10?