Need help in a short time! THANK YOU!

(I apologize for my English)

Hello my name is Boris (bIRKOFF) I am 19 years old and I need help about a motivation letter, but not just any motivation letter.

I am going to candidate in a private academy. Private academy for computer programmers (I've good knolege in Java)

I know how to write a motivation letter for a job position (not that i am an expert but I can manage) but I feel a litle bit difficult

for this school/academy. If anyone could help just with the 'start' I would be thankful. (it's my first time in this greats forum site)

THANK YOU