There was a time when we were young that disappointment was but a momentary blip in our enjoyment of the day. If we didn't get what we wanted it rarely lasted long enough to carry till the next day. There was simply too many other things we get on with.
It appears that the older we get the longer disappointment lasts turning into days, weeks, months and in some cases years. Dwelling on our disappointments does not leave us any time for changing them nor time to pursue our next action.
Disappointment will always be there no matter what we do if we consider ourselves infallible in forecasting the future and linger long after it should. Mistakes are to be learned from not enshrined.
As we get older there can be the feeling that we are running out of time and every disappointment gains more importance than it should because of the pressure we put on ourselves. Keeping alive the feeling of disappointment serves no useful purpose.
How do you shake off disappointment and get on with things?