How do I start fresh or delete my health data without deleting my account?

If you want a clean slate, the easiest way is to create a new Care Plan:

1. Tap More in the bottom navigation
2. Go to My Care Plans
3. Tap Add Care Plan and give it a name
4. Switch to your new Care Plan

Your new Care Plan starts with empty trackers and a clean Timeline. You can add whichever medications, symptoms, and measurements you need going forward. Reminders carry over between Care Plans, but you can disable reminders for your old Care Plan by going to My Reminders and toggling off the ones you no longer need.

To manually delete individual entries:
1. Go to Timeline from the bottom navigation
2. Find the entry you want to remove
3. Tap on it and look for the delete option

Your old Care Plan and its data remain available if you ever want to switch back.