Donkey on my back!

I trudge through life,
Fumbling, tripping, weighed down,
Unsure of where to take the next step,
With a donkey on my back.

A conscious decision, taken years ago,
To bite me in my ass.
Running away would be far too easy,
But for the donkey on my back.

Look at the bright side
I'm always a step ahead, and
Covered from the rain, but get to see no sunshine
With the donkey on my back.

Tried prying, shaking, rolling on the ground,
But made me just the same.
And changing constantly, drives me insane
Because of the donkey on my back.

Need to shed this extra weight,
But no diet does the trick.
Now brain-aerobics will make it stick
For the donkey on my back.

So into the Queen of Hearts I turn
Yet slow to command, 'Off with its head!'
Either its me,
Or the donkey on my back.