How can I improve this?? I know it's lazy but that's why I want to know how to improve it.?

First things first, you have short sentences that could be combined into one fluid sentence. For example, 'When was this flight over, I thought. Someone knocked on the door. I groaned and splashed water on my face. I gasped at how cold and crisp it was.' could be 'I wondered when the flight would end as someone knocked on the door. Groaning, I rolled my eyes before getting ready. The water I splashed on my face was cool and crisp, making me gasp.' That's kind of sloppy, but you get my drift. Starting too many sentences with 'I' makes it choppy. Also, instead of calling the boy 'hot' you could say he was attractive, and describe his features. What color are his eyes, his hair? Does he have a mysterious smirk or a mischievous grin? The beginning, when she awoke from a dream...you could talk about the ending of the dream just before she wakes up, intriguing the reader as to why she was dreaming about such a thing. If you want more tips feel free to email me. I'm happy to help!