Must do level 10 class quest from your starting classes guild.
Do main story quest to level 50 (end of 2.0) so u can utilize the benefits that unlock through it retainers grand company challenge log etc. First optional
Join all crafting guilds and gathering guilds to become self reliant but still optional
Eat any food to gain 3% extra experience or frumenty for extra cp
Use vendor in guilds to buy materials need to up to level 15.
Recommend grand company turn ins at level 10 or 11 turn in only HQ items for max reward and experience.