do something you like...

make new friends and talk about not usual things with them or take a plane and travel around the world :)

Just smile!

I'd try to go running or do any other sport. Other options would be reading a book or playing video games.

Never being so boresome with TV programme and the Internet access. 

Go out to running. I am sure your mood will change in better 

take care of you girl. You are really cute :D

Maybe reading.