"The Trending 20" is a regular series where we round up interesting, informative and hilarious tweets from worldwide Twitter trending topics, fueled by young tweeters on the interwebs. Have one to submit? Give us a shout @HuffPostTeen.
Falling in love for the first time, losing old friends, learning who you can trust... according to Twitter, this is what high school life is all about.
#InHighSchool trended worldwide today and young people sounded off on the different things they love and hate about life their non-summer months. In the words of one astute tweeter: "#inhighschool EVERYTHING changed... Whether it was your looks, personality, or your friends."
Click through the slideshow below for a sampling of responses and share your own additions the comments or tweet @HuffPostTeen!