Nopeso what you do is grind until you can get 3 water spells and then you just make fluid potions.
You need no essences and food costs like 15 flames per, selling each potion for almost exclusively profit.
take soldier buy a slave license,
grind till you can buy some essence from arcane shop
make a slave enchant ring
enslave first random
sell slave
repeat till buy rooms to hold slaves
when strong (lvl 5 or so) go enslave succubus for lots of money