Are they a diary, a sort of forum, a..? What is a blog here 'supposed' to be? Is it anything I choose to make it?

I'm going !
I honest to gosh don't understand this site at all! I've been jumping around this place for hours, trying to figure it out. But this place is just too BIG! It's making my head spin!

What would you recommend a newbie like me do? How can I easily navigate this labyrinth? Also... Where's my hair??

Hit me up if you think you can help. Thanks in advance!
/ alicats a.k.a AL.