Hmmm same feelings here too!!
Used to be a very carefree primary school kid (or even before that)
when I was just a small little kid...
Now... Countless stress keep on coming to me every single day... At
times think too much and worry about a lot of things, and
eventually from a carefree kid in the past, now become a very (or
should I say... extremely) emotional (or "emo" which is commonly
used now) teen? 
Here into my Secondary School life, I start to have all sorts of
problems with my parents, money, etc etc... Ok I should stop here
le... Say further I'm going to be emo liao.....