Here is another incisive saying in Spanish about how little control we have about certain things and events. Accepting that some things will just happen is part of being alive and having fun every day. No attachments, no judgment, no anger.
Cuando te toca aunque te quites y cuando no te toca aunque te pongas
The translation goes something like this:
When it is your turn, it is futile to try to avoid it, and. when it is not your turn, it is futile to try to make it your turn