You just need to grind for it. Search the forest, go to the market, buy white flowers and sell everything that’s not white flowers. Make 10 healing potions, give them to the guards, you’ll level up a bunch. Then you can make lots more potions in a day. Make healing potions until you can buy the height recipe and Earth Rune, the make height potions. Those sell for a whole lot so you can get the recipes and runes for the breast and ass potions. It took me probably an hour to grind the first rune but only 20 minutes to get the other two potions from there.