Learn:

Useful stuff to stay in the air

1-page start up guide
for first-time flyers:

DJI Mavic Pro / Air / Spark

User Guides
for all
DJI Drones

The DJI Forum
for all things DJI

The Grey Arrows Drone Club
The UK's best Drone forum

Dronescene
Check where it's okay to fly

UK CAA Website:

UK rules in plain English

USA FAA website:
How to avoid fines

Australian
Civil Aviation site
follow the rules or pay a hefty fine

Sample of Video