First, I have edited your question so that it uses standard English spelling and grammar. I hope it is what you intended.
Second, I can't do your homework for you. If you have a specific question about a piece of literature or need advice on how to formulate a paragraph or an essay, I can help you with that.
Having said that, I think your assignment is very interesting. You're being asked to use your imagination to tell how you would feel if you had to leaave home to study somewhere else. So do just that: use your imagination. Would you be sad? Would you be excited? What would you take with you?
Don't write it as "If I were going away..." Actually put yourself in the situation and write something like, "Today we boarded the bus for ____, and I felt _____." Fill in the blanks and imagine what else you might think or feel in the situation.
I hope this helps you!