R.I.P. My not so beloved Pet

I have a pet;
Its name is Depression.
Many people love their pets,
But I love to hate mine.

I fantasise about digging a
Hole in my backyard and
Burying its corpse there,
Yet I can't!

I just can't seem to get rid
Of it;
To kill it.
It's immortal.

How?
How can my pet be immortal?

It feeds off of my happiness
And leaves me with nothing.
My happiness is its secret to life.
To immortality.

It drains it out of me until I am
Left with only pain and agony.
It leaves me feeling alone
And bitter.

But,one day It will die.
There will come a time when
Not even an ounce of happiness
Will be present within me.

That day,it will starve to death.
I will be watching It with a feeling
Of satisfaction.
I won't show nor feel any happiness
Because if I do then It will return.

I will lead a life of pain
And disappointment.
I will not smile nor laugh.
I will live the life that Depression
Wished for me to live.

I will do all of this so that It
Will rest in peace and not feel
The need to resurrect Itself
Through my happiness.