So, as I was typing this comment to a comment about the comment's content as a comment to a blog, I started naming all the phases I've gone through as a teenager.

This is what I got so far.

1. The I-don't-remember-a-god-damn-thing phase: What'd you expect? A detailed analysis of my childhood? Age:0-11 years
    
   
2. The growing up phase: The time when I wanted to be more "mature" and grown up like. Age: 11-12 years.
    
   
3. The nostalgia-that's-not-so-nostalgic phase: The time when all I liked was old stuff. I was even one of those kids who said they wished they lived in the 1950s. Yeah...not the best phase. Age: 13-13.5 years.
    
   
4. The apathetic-that-wasn't-really-apathetic-considering-that-I-was-apathetic-because-I-cared-about-being-mature-ergo-not-apathetic phase: The time when I didn't care about anything or anyone, because that's what society made me think. That men shouldn't have emotions.Age: 13.5-13.75 years.
    
   
5. The caring-about-everything phase: The time when I had opinions to everything and of everyone. And this is when I started caring about politics and the like. Pretty much in opposition to the last phase. Wonder if it had something to do with me "rebelling" against society. Age: 13.75-14 years
    
   
6. The anti-traditional phase: Pretty much against most things traditional. Traditional marriage. Traditional use of tonnes. You know. Traditional stuff. Just because it was tradition. No real reason to be actually against it. Age: 14-15 years
    
   
7. The I-don't-give-a-damn-phase: I don't give a hoot about what you think! They actually used hoot. I know. Pretty hypocritical, but oh well. Age: 15-15.25 years
    
   
8. The finally-found-love phase: Thought I found love. I did, but it was teenager love. I know, I know. Shut up. You probably had the same phase. Age: 15.25-15.5 years
    
   
9. The depressed-kinda-not-really phase: Right outta the love phase. Guess you know why I was in that phase. 15.5-16 years
    
   
10. The foolishly-optimistic phase: I love everything and every thing is going to work out just fine! Age: Current
     
    
11. The hyphen phase: You know what's coming next. Age:Current
     
    
12. The meta-phase: It's a reference to a reference of the future reference referencing to the past reference that referenced the future reference. Age:Current
     
    
13. The science phase: Otherwise known as the awesome phase. Age: FOREVER!
    

I wonder if it lines up with the cosine graph.

Happy>Medium>Sad>Medium>Happy>Sad>Happy

It's a pretty good match. Not perfect, but alas, reality never is.