First of all, try to introduce the topic finding answers of the following questions:
(First topic)
Why were you away from home?
What were the conditions?
Was that good or bad?
Which thing did you miss and why while living away from home?
(Second topic)
Which type of embarrassing situation you faced and why?
How could you manage to face it?
In future, what would you do to avoid it?
Answers of aforementioned queries would lead to a full-fledged essay.

Sent from my Oppo R5

__________________
A man is not finished when he is defeated, he is finished when he quits!