I'd say that my best and worst years would be 2015/2016 & 2011/2012 respectively:
Best
2015 was the year I first got into travelling properly, the first year I was really interested in trains, and the year where I started to gain a bit of confidence in myself, and this carried on into the beginning of 2016, where I'd started to talking to a girl I liked, and didn't want to come across very hasty, she had completely different intentions...cue one hell of a mess over my 16th birthday party, when she decided to well and truly try to break me, or at least cause me to lose that bit of confidence... I didn't, fortunately, and although she apologised for it, I'm still wary of trusting her. 2016 was also the year I took part in NCS; and led a team of teenagers (no mean feat!) in helping a local charity, involving me being paraded around Wolverhampton in a giant sunflower costume, and a funny incident having to get out of McDonald's dressed in it! Along with that, sleeping I Uni accommodation overlooking Wolverhampton North Junction, well, what more could I really ask for...
Add into all of that, that I passed my GCSEs, and made new friends through my A Level choices, and my prom, a night I won't forget for a long time... yeah, u think that sums up my personal bit about 2016!
Worst
2011 started off reasonably, I was finishing Primary, aged 11, and moving to my current school for Secondary education, resulting in nothing much interesting happening, minus a rather painful game of paintball...
October 2011 was truly the worst point in my life; the most depressed I've ever felt, as one day, I went back to my nans as I usually did then, after school; only to see my dad's car there, unusual, but could also be my nans TV was screwed again, so I didn't think anything of it. Only once my dad sat me down and explained everything to me did I realise the enormity of the situation, that my mom had passed away, after recovering from a blood clot, there was realistically nothing I could say, I just sat there, basically comatose, thinking about things, and it was enough to scare me away from doing what I was about to do afterwards, and I'm glad it did, I really am!
After that, 2012 couldn't be any worse, well, yes, and it was, or at least as bad, as in December, my nan passed away, but I was the last person to see her alive, and, although irrationally, I started blaming myself for not doing enough to help or stop it, only to be told be everyone to stop, as it wasn't my fault (brilliant advice there, but I came to accept it)
That may be a lot longer than I intended! I realise only been 16*, that I may not be the most experienced in life, but I always try to find the positives (not that there were many in either situation I guess)