Do your guildleves, and then spam behest till you hit 23 and then try to join with people for 30 camps if you can, maybe try joining a linkshell which can grind out linkshells with you. You will be linking leves at this point, someone will initiate a leve, then you will touch aetheryte and choose "intiate leve link" or some crap to that effect, more links more sp till July 21st or whenever 1.18 comes out if its late.

If you can level up fast enough there's only a few camps with worthwhile leves to do past 30, and if you find experienced enough people in game they will inform you fast enough ^^