The best years of my (currently short life) have been 2004-2006 as a little kid, I was old enough to remember stuff and it was great for music and I'm obviously super nostalgic about everything from that time.
Then 2013 and 2014 for my teen years, the start of partying and being older but still having no responsibility.

The peak was summer 2013, I really hope I have another summer like that.