This dude is trash... he's 17 years old and he is scared of slimes?
He has no resolve to do what he has to do in order to grow in strength, all he does is fumble around a dungeon with no plan in mind no skill to his name... not to mention he is stupid, why the he** would you bring a wooden sword to a fight? There is only one thing that a wooden sword is good for and that is training, it is absolutely useless in a fight, I understand that he probably couldn't get a steel sword very easily, however a kitchen knife is better than a wooden sword, and if he is restricted to wood then use a club, a club is 100 times better than a wooden sword