Once the mod has got your game, you can't fix it. You'll have to start over, or from an old save before things went haywire on you. But...
If you want to cheat (like I do) I don't think you need a mod. If you're worried about dying in combat, a simple save editor can be used to increase your HP, MHP and DEF scores, making you very, very hard to kill. Then, since you can beat most things in combat, you can rack up coin with goblin's ears, and grind on gathering resources without fear of dying. Kill bears! KILL ALL THE BEARS! Sell stuff at the store. You'll get money, items, and experience pretty easily and quickly. From there, ALL the quests will get nice and simple for you.