New to Fitbit (or any wearable). Tips?

I've never worn a tracker before, and just got my Fitbit Charge 6 in the mail. I've downloaded the app, and synced my phone and LoseIt app.

It's charging now, so while I wait, I'm trying to learn what I can, explore the app, etc.

I would love your tips, tricks, and thoughts! What should I focus on first? What are the best settings to conserve battery, but still get good use out of the tracker? Anything you wish you'd known when you got your first tracker?