like i said to everybody else,you should write this on your own.
but still,i can give you some hints:
1.beening an interpreter is hard in ways but also very fun in ways.
(hard:maybe you can't find the best or the right way to translate or to pronunciation stuff in to English or some other language;maybe you don't like English as nuch as the others;maybe you can't find the correct words when you're beening the interpreter.)
(fun:maybe when you finally found the way to be the perfect interpreter,you felt that the other language can interesting;maybe you can make fun out of this job.)
2.the reason that made you a interpreter.
(a.getting to learn another language is a very proud thing.
b.you can learn more from whatever the language you are lerning
c.you can make friends from other countries
d.you can learn more from other places
e.you can also be more international in the world)
3.the way you first felt when you chose to be a interpreter and the way you feel now.
(can't help you on this one,i don't know how you felt)
but still,i wanta say to you that according on your need that you said about your essay,i think you have the skill to write this on your own.believe yourself,kiddo!:D