How to change your stats like standing and exercise to fix your personal needs

Here's how to change your move goal:

1. Open the Activity app on your Apple Watch.
2. Go to your rings, then firmly press the screen.
3. Tap to increase or decrease the number of active calories for your daily Move goal.
4. When you're done, tap Update.

For some reason (with watchOS 5 and 6), you can change the Move goal, but not your Exercise or Stand goals.  This was changed in WatchOS 7 so that you can now change all the goals. See the "Change your activity goals" section in:

Use the Activity app on your Apple Watch - Apple Support

This is all you can change with Watchos6;