When things do not go according to plan, we can resort to complaining, blaming and making things worse for ourselves.
However, the other approach is to take advantage of the change of plans and do something that you have been waiting long to do.
Start collecting “waiting period” things to do. So when you end up somewhere where you have to wait, you say great. Let me pull out my “waiting period” things to do. Alternatively, keep some great reading material around that you can read when you are forced to wait for someone.