Ah right, that's really impressive mate! Were you rowing in an eight? The world record fastest 2K by an eight is 5:22, I don't remember who was in it exactly but it was a crew from The Netherlands (but that was Olympic World championship stuff

, the under 18 record's probably a lot higher!)
We don't have eights over here, we can only manage quads in the sea. So the times wouldn't be a fair comparison

Good luck in your future attempts!
A quitter never wins, and a winner never quits