Actually, this is not a spell, but a good method to raise concentration before tests in school, breaking records in sports ;-) or to calm down when something has started to make you nervous. I created this method a few years ago to reduce my nervousness when having a test or giving a lecture.
Performing the "spell" is quite easy. All you need is: a place that is not disturbed by any other people your hands. Arrange your hands as shown in the picture below. Press gently with both forefingers over the bridge of your nose (always from the top to the tip of the nose). Do this over and over again while casting your wish (to receive power or reduce what is bringing you down).
Open the "spell" with words like: (translated from German)
"These are my hands,
arranged with sense.
On touching the nose,
the circle's been closed."
Now say whatever you want to say. Close the "spell" with words that sound very powerful and determined. I believe there are various streams of energy, flowing through body. So I think this "spell" not only works because of the pentacle that your hands are forming, but also because mind and hands close special streams of energy. By doing this, mind and body communicate.
