Dial-the-Lama

Detachment:
The wise say detachment leads to contentment and attachment to ego.
But it is hard to be detached about something that is your own, that you feel an entitlement towards. An author cannot be detached from his/her words or his/her books. Definately not while they are being written, not even after.
He/she can be thick-skinned, delusional, deaf and other lovely forms of "living on another planet" but not detached.
So what about ego? I believe that if I am then I have an ego. Not a good one or bad one, but I have one. I am therefore I have a Self ergo I have an ego.
There's my attachment right there.
Now tell me how to detach from that.