Insecure
Ambitious.
A critic
Someone who is obsessed with themselves is commonly referred to as narcissistic or self-absorbed.
Clumsy
There is no specific word for this.
It's basically what scene's call themselves, and others call them that to. The original word is Scene.
a troublemaker?
You could call them a loyal or supportive friend.
Derealization and depersonalization sindrom.
A self - eater, i think.
People from Brisbane do not tend to call themselves anything, except in relation to being a proud Queenslander. Sometimes people from Brisbane call themselves "Brisbanites".