Only you can answer this question. Everybody feels differently when their school closes down. Factors such as your age, religious beliefs, home situation, and background all have to be taken into account. Only you know who you were before the schools closed down, and only you know who you are now.
When writing a poem, I would recommend keeping it short and sweet, and following a basic rhyme scheme with a simple rhythm, just for the sake of simplicity.
I hope this helps!