New to Kindle + Kindle Unlimited. what should I know?

Hey everyone! I’m brand new to Kindle (just got one recently) and I already have Kindle Unlimited. I know the main point is reading, but I feel like there’s a lot I probably don’t know yet. I have the Gen 11 kindle

I’d love any tips on:

•	Must-change settings (fonts, lighting, page turn options, etc.)

•	How to get the most out of Kindle Unlimited

•	Best ways to organize books & samples

•	Battery tips & care

•	Features people overlook or wish they knew sooner

•	Anything you learned the hard way

Basically: what would you tell your past self when you first got a Kindle?

Thanks in advance — excited to use it more