I don't believe you,
That I can't change the past.
I believe that I only need
The right level of access.
I'll live in the past with my friend regret
Refusing to venture further future.
I'll cling to hope misplaced long ago 
With almost enough rope to hang
With more than enough to secure
Familiar safe harbour.
Or perhaps to suspend belief from high hopes
Long enough to cast adrift
With just the ever present wind to give direction.

Draft #2
I don't believe you,
That I can't change the past.
I believe that I only need
To dwell on it a little more.
I'll harbour in the past with my friend, regret,
Refusing to venture further future.
I'll cling to hope misplaced long ago 
With almost enough rope to hang,
With more than enough to fasten
To that familiar safe haven
And one day I'll suspend my belief from high hopes,
Forlorn and cast adrift
With a tried and true ill wind to give direction
And find safe pasture.

Draft #3
I don't believe you,
That I can't change my past.
I believe that I only need
To dwell on it a little more
And so prise it open.
I'll shelter with my old friend,
Regret,
Refusing to venture further future.
I'll cling to a hope that I misplaced long ago 
With almost enough rope to hang from,
With more than enough to fasten myself
To that familiar safe haven.
And one day I'll suspend my belief
From high hopes, forlorn and cast adrift,
With my tried and tested ill wind
That will direct me and will find me
a well worn safe past and safe pasture.