No regret

I regret;
And why do I regret?
I regret
‘Cause opportunity knocked once,
While I was asleep;
And did not hear;
Sadly for me, it took off.
I slept at the wrong time;
And failed to be alert;
See how I’ve missed it all;
That is why
I regret;
Though that will not help;
I should rather resolve
To be more vigilant
In future.
No regrets.
Regret will not help.