I’m new to this. Where do I start?

DEAR CARALLEL: I’ve recently realized how much help my mother and father need and I’m overwhelmed. They are 79 and 83 respectively and until these last few weeks, I thought they were in good health and doing just fine. Sure, they slowed down a bit in recent years, especially dad, but I thought that seemed normal … I’m new to this. Where do I start?