metaphor in poetry

there is no one in the world
who is as great a driver of cars
and yet as terrible a parker
and un-parker of cars as I
this is a metaphor
this is a metaphor for my entire life

when I get on the road
when I get rolling
I'm pretty good
when I'm at full speed
and I know where I'm headed
I basically have it down
I can roll with the punches
I can navigate the roadblocks
I can reference the maps
I can augur direction
by landmarks and the sun
I can do it
I am pretty good at things
as long as I know
what the next step is

but starting up
I've ripped the sides off of cars
three or four times now
I get distracted or anxious
and I'm overcorrecting
because I don't know things exactly
and it's all a goddamned mess
and there is no success

or when I'm stopping
and I'm so goddamned afraid
of screwing up someone else's car
that I can't parallel park
and I have to stop three miles away
and try to walk
and end up late
and miss the date

if you have ever seen
my indecision when parallel parking
you'd know
there is no one as great when they're moving
and no one as stuck when they're not
as I am
and it is a metaphor
for everything