as low lvl as u are u better farm mobs , farm bees , crawlers , yagudos , all those stack so u can farm for a while .
U can try luck with Nms , but if u dont see it or dont get the claim all that time is wasted.
If u want to craft , low lvl recipes are "profitable" if u farm your stuff , copper ingots for example , kill woms > convert ore > ingot > profit
cooking is cheap as hell and can help u , for example low lvl juice as pld helps when farming your own mp + juicie = 2-3mp/ tick , can keep healing w/o needing to rest

once u are higher lvl u can farm better mobs (Tigers like Bodey said , 3 fangs = 2100 on sandy = plus reputation) add leathers and u are gaining some gil
Scrolls too (quested scrolls are expensive if u arent going to lvl soon those jobs u can do quest sell it and if needed buy the scrolls later maybe even cheaper) , or scrolls drops , i farmed in 30min , like 4 reraise on beadaux , thats 24k gil for almost no work
Pld isnt that expensive , armor and weapons come from conquest if u are from bastok or sandy there are tons of CP items.