When you examine the "impact on you," you need to show the deepness of your critical thinking ability. One important thing is that a self analysis is more important here. And be careful with essay about landing. Sometimes you have a story to share that doesn't quite fit into any more option. so make a sure that your topic can't be identified with one of them. And also don’t associate topic of your choice with a license to write a comedy routine and tell something about you to reader.