When plans cancel, notice your first feeling. Relief or disappointment tells you whether you wanted to go.
REFLECTION
REFLECTION
The instant a plan falls through, your reaction arrives before your manners do. Relief and disappointment each say something true about whether you wanted to go, while the polite message you type a moment later says nothing at all. It is a free reading of your own preferences.
Catch that first half second the next time something gets called off. Note it somewhere. After a few instances you will have a fairly accurate list of what you actually enjoy and what you have been attending out of obligation.
When plans last fell through, did you feel relief?
Free, with nothing to buy inside it.