Tick anything you already have, in any order. Quests unlock once this is done.
Online Go Server is free and matches you to your level within a dozen games. Play 9x9 to begin with, because a full board hides what you are doing wrong.
Open OGS2 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: Play a full 9x9 game to a counted result