Listen without rushing to fix things. Ask what would help today and offer one...

https://elliottsbestdigests.lucialpiazzale.com/how-do-i-approach-someone-who-is-excessively-worried-all-the-time

Listen without rushing to fix things. Ask what would help today and offer one step, like going along to an appointment. Try, “I’m here. Want company or help making a call?” Set kind limits. Support may take more than one conversation.