I hate to say it, but... maybe I do have to say without any doubt 2007.
It's hard for me to say that because it had so much good and although I didn't show it, the first half of 2007 was me at my happiest, and most hopeful for the future. But the last half of the year, my life turned quite dark. First the medical issues started, which had always been the nature of my very worst nightmares that I had convinced myself could never happen to me.
From there, it was like my childhood, happiness, and hope for the future was smashed like a broken window. The dog who had been there throughout the vast majority of my childhood got sick, and passed away. Then my grandpa had a heart-attack. He didn't pass away at that point (it would be a few years later) but all of this at once really hit me hard. I had just turned 18 in late 2006, and I guess... It's like going from 17 to 18 was really like leaving childhood.
I no longer look to fondly upon the year of 2013, either, to be honest. It was the year where I had to drop out of my last university, and came to admit to myself that music wasn't right for me. Just like that, I threw away my dreams. It was very painful, but I saw some light still with my ex, who I had begun talking to again, and by late summer it looked like we were getting back together. I staked a great deal of happiness - noting I had lost a whole lot by giving up on music - on her.
...And that went nowhere.
...But, to be honest, I can't down-talk the events of 2013 too much, because everything that happened - including all of that with my ex - in a very strange turn of events got me back into school in music this year. So I suppose I wouldn't change a thing. I am not one to believe in fate, but these turn of events are just so strange.