New to eBikes - where to start?

Hey everyone! Just joined the Engwe Owners group – super excited to be here. I'm totally new to the eBike world and just ordered an Engwe Engine Pro. I'm wondering, for those of you who've been riding for a while, what's one piece of advice you wish you'd known when you first started out? Any must-have accessories, maintenance tips, or even just good riding practices for a beginner? Thanks in advance for any wisdom!