I watched my girlfriend get murdered in Dark Souls today by the starting ghoulies after she had dispatched the armored bored, the two gargoyle bosses and a titanite demon. Why did that happen? Because she got greedy and forgot that getting hit from five directions at once makes it kinda hard to defend, no matter how weak the enemies.
I don't understand how people can say the Souls games are hard. I find Super Mario World to be a harder game honestly, not to mention a lot of others. All you need to survive any game in the series is a bit of patience and planning. Don't rush, don't attack blindly, learn from EVERY single mistake and you'll get through the whole thing without breaking a sweat.