Really, really spectacular essay! Only really minor things that need help:
As real as my daydream seem, it isn't reality, after all.
This doesn't completely sound right-maybe change it to "As real as my daydreams seem, they still aren't reality." or "As real as my daydream seems, it still isn't reality." (I think you were just missing the S on seems so I wasn't sure which!)
1 year later, an excited freshman of my dream university, eager to try out everything new... 5 years later, a graduate filled with cherished memories of university life, eager for the life ahead... 10 years later, a civil engineer enthusiastically designing and constructing beautiful pieces of work... 15 years later, a mom with a wonderful family trying her best to balance life and work...
Numbers at the beginning of sentences should always be written out, so just change these to "One year later," "Five years later," etc.
I would really elaborate on the Red Cross Society, and what exactly your plans are to help in the future. Your entire essay is about daydreams regarding unforunate situations, and how that affects you so much that you want to help. But then you only really have one sentence that focuses on HOW you're going to help. Are you going to join the Peace Corp when you get older? Do you give money or food to homeless people when you see them on the street? Stuff like that! Just specific examples of how you want to help people, or ways you already have.
And it gives me physical pain to say this because I am obsessed with dashes...but I think there might be a bit too many at the beginning. Try to switch some of them to semi-colons or split them into two sentences. Since dashes are such a strong puncuation, you don't want to use too many and then diminish their effect.
Really fantastic essay though! Good luck!