We do not always do the right thing. That's our akrasia. We are all guilty.
There are several steps you can take to lessen your die-ease with the event.
You can get over it, which never works, or you can learn to live with it, which helps to some degree.
The best way to lower the dis-ease is to Just Make Peace with yourself and get along with it all.
Your greatest teacher was your last mistake.