I can give u some ideas -
if ur aim is to become a teacher , then u can say that -
FIRST OF ALL TAKE SOME QUOTES ON IT LIKE FROM ABDUL KALAM.
THEN SAY -
i will teach all the poor students who is unable to get education.
i will make the coming generations the lamp of the country.
i will make them responsible towards the nation.
children are the coming generations of the country.
or if ur aim is to become a SCIENTIST then u can say that u will invent more and more things and i will lift my country's flag.
or if your aim is to become THE PRIME MINISTER OF INDIA , then u can say what all changes u will bring in this nation.
or also if your aim is to become A SOCIAL WORKER then say what all gud things u will do.
BUT THE BEST AIM IN ALL THIS IS THE AIM WHICH INCLUDES ALL THESE IS ' TO BECOME A GOOD CITIZEN '
TO FOLLOW THE PATHS OF OUR GREAT LEADERS AND TO GIVE THEM THE MAXIMUM OF OURS...........