The Mediterranean barely has tides. Some places don’t swing much, and some people don’t either. Both are fine.

Emotional range varies the way coastlines do. Some people run high and low inside a day and others sit steady for years, and neither is a failed version of the other, though both get told they ought to be different. A level person is not cold and a changeable one is not unstable by definition. The water does what the shape of the basin makes it do.

Work out which you are rather than which you have been told to be. If you run flat, find out how you actually show care. If you swing, build the few routines that carry you through low water.