I don't even know where to begin with this. If I could see you, or even talk to you, just one more time, this is what I would say to you:
I miss you so much. You were and always will be one of the most important people in my life and I have so much to thank you for.
Thank you for being there for me when things went downhill fast and I couldn't stand on my own. Thank you for the eleven hour long Skype calls, the random texts just to check in, the concerts, and the "I love you"s. Thank you for always being so strong. I swear there isn't a day that goes by without you crossing my mind at least five times. I don't think anyone will ever understand how much you mean to me and how much you taught me before you left, but I know I will never forget, not for a second. I am so proud of you for fighting so hard for so long, and I'm glad you don't have to fight anymore. It's going to be a long and hard road without you here, but I know you'll always be looking out for me. You will always be my best friend and guardian angel.
But like I told you that day in the hospital; this isn't goodbye, it's see you later. I love you.