Answer:
Reggie shares that, at first, he didn't want to stand out in a crowd. However, he realizes that while it might take time to figure out who you are, the most important thing is being yourself.
To talk about shooting the elephant or for a thrill
I'm not too sure about this. However, I would say that it is Ok to say attached is the assignment. It seems wrong, but to make it seem more natural, maybe try adding extra words like requested.
Well Elizabeth in the story killed all the marigolds but the marigold represent hope, that when everything is hopeless there will always be a piece of hope. I hope that helped and you might want to change that into your own words