It's all part of the British Working Tradition.

First you whinge about not having a job.
Then you whinge about only being a temp and being underpayed for what you are doing.
Then you stress out like mad about getting the perm version of the same job.
THEN, and I mean the day you turn perm, then you start whingnig about how muh you hate your job.

Well done sir, you are on top form! ;-)