How to Make Money
Your main source of income shouldn’t be from selling stuff. Gambling is an easy money early on.
Around the Nameless Village your best money source is probably from fighting boars/snakes and selling the meat and skins to the butcher and the hunter respectively.
Once you leave for one of the cities you can then visit the dice gambling and quick-save, place a bet on a number, and then reload if the dice betray you to save-scum as much funds as you have patience for.