Are You Ready?

I am a blind fish.
I saw a fly today, it bashed into the window once and then flew right out.
It was then I realised: this fly is smarter than me.
The fly made one error and then corrected itself.
I make the same errors all the time and rarely correct myself.
It's taken me a year to stop myself from making some major errors again.
Recent events have made me test myself, and I think I've not done too badly.
I'm better at life than I once was, but I still approach it as a blind fish.