Tick anything you already have, in any order. Quests unlock once this is done.
Agility, flyball, obedience and scentwork suit different dogs. A club will tell you honestly what your dog will enjoy, which is not always what you fancy.
Find a dog sports club2 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Pick a dog sport to try