Good! You're a bastoker as well. At level 6 you could probably do well on the hill. I forget the name of the hill, but it is marked on the map and is in S Gust. You can climb up by ramps on the northeast and southwestern sides. I fought there until I was about L8 or 9.
After that you can head west to the fumaroles - an area in S Gust marked on map, a few swamps and rock formations mostly with vultures, quadavs, crabs, and saplings - and fight until L10 or 11, and then head into dagruf wadi (zone southwest of S Gust, past the fumaroles) and find your way around there to some decent challenge and even mobs. Don't go up the geysers unless you have a group or are L14 or so, the stuff gets tough up there.
Alternatively at about L11 you can head to konschtat highlands (area northwest of north gustaberg, only reachable from south gustabergs's northwest exit -> north gustaberg -> konschtat highlands) and fight in the western area of the zone.
There is a levelling guide on ffxionline.com. Slow site, give it time to load.