Isn't this dictated by your available free time?Or project-based? If you are a writer, for example, it's usually project based.Otherwise, if you really have a hard time setting boundaries, then you might be the type to orient yourself around the states of your social circles. They definitely have boundaries when they stop listening or caring.If you can't say enough is enough yourself, let someone you trust, or in whose competence you trust, do it for you.I would say something like "when does it ...