umm.. can you tell us whether you have to talk in the general manner more or give examples regarding previous experiences? and do the experiences have to be school-oriented?
if it is experiences , you can give many school-oriented challenges like studying hard for an exam which you thought
you cant pass, proposing to a girl, apologising to someone for an error (which i think is a tough thing to do: show humility), score a winning goal or something when your team needed it.
if it is in the general sense, talk about human nature to start of with, how we hesitate and lose hope many times. say that we need will, determination blah blah to bring ourselves to do things. say that achieving such goals gives the ultimate satisfaction.
thats all i can say offhand
