If i have any tips id probably say measure risks, get fatter, and invest in either charisma or accuracy. If you get more room to eat you can use bigger healing items without getting full, though that means you'll need more to heal to max. Luckily charisma can help you get what you need for barely any price and maybe you'll have more for later. Another thing is that if you can get a mysterious key, get it. If you have one and come across a chest room to pick either a bow or sword. You can get one of them for free without having the risk of chance. I dont really go for killing the boss and instead see what I can do for little challenges and so far my maxing into charisma gets me to the gluttony queen. I can't guarantee a win but I hope this helped a bit.