You and me both
Yes, I also have made those mistakes. I learnt that it's better to be down here wishing you were up there.......etc.
I do get a bit firm with relatively in-experienced pilots when they look fleetingly at the weather/runway condition etc. and say "it'll be alright". Thankfully it happens rarely, but I make apoint of explaining why and what can happen.
Doesn't always make you popular but i believe that other people can learn from my own mistakes