I literally finished the book 30 minutes ago(those 30 minutes were spent crying in the shower) within 2 or 3 hours of starting the book and I'm currently sitting on my bed typing this while trying to see through tears.
I already knew that you had to live to die but this book has shown me that you have to live your life to the fullest while you can, and to let go of everything to live the best life you can. As much as it hurts that they didn't beat the odds, and did live up to the title, It feels good knowing they lived the best day of their lives together.