I have been thinking about my lifetime of lost opportunities. One that always comes to mind was the opportunity to spend much more time with our four children - all now 40+. I confess that less time should have spent on furthering my career and enjoying my hobbies.
No doubt we all regret lost opportunities of some kind.
xmillyxxx
Pro
Better to concentrate on the present and make the most of it 
I often worry about the amount of time that i get to spend with the chldren due to work commitments..but always try to make the time that we do have special..As for lost opportunity'..We all have lot's of them,but can we change them? xx