Why so many mistakes?

Why? Why? I don't know why......
I keep making mistakes!!!!!
Maybe my brain already stuck? (I have square brain)
I really really don't know what I am doing...
At this moment, very very down..upset..

Accounts! Arrgghhh~ What the hell......
I'm blaming myself... angry myself...
I don't know when I will give up this job!
If that day really comes, what job can I get?
What can I do? Where can I go?
There is no answers for that because that is the path I chose myself.

**singing** I am big big girl, in a big big world~
is not a big big thing If I Leave here ?