I would write a strategy guide... but im super lazy! So if you just bought the game and have trouble starting(God knows the game gives you almost zero direction) or if you had it for a while and just rage quit on a difficult or confusing part ask me how to advance! I know everything about this game. The only thing I dont know about the game is the lore because the game forces you to read item descriptions for that. I've beaten it around 14 times overall and I can run through it in an hour on NG+ and maybe a day or two if I do a level one run. This is my favorite game(obviously!) But it's brutal if you don't know what you're doing. From the weapon upgrade system to boss strats. Any questions about darksouls, I have your answer. Hell, I can create a char and jump in your game(if you have ps3) to help you. Demon's souls too but i've only ever beat that 3 times. Ask away! Like now! Praise the Sun!
Common trouble areas:
-Tutorial Level
-Blighttown
-Catacombs
-Anorlondo
-New Londo Ruins
-Dukes Archives
-Crystal Cave
-$15 DLC
Common confusing elements:
-Weapon upgrading
-Scailing
-Required Stats
-Attunement
-Catalysts/etc.
-Starting class pros/cons
-AI Aggro
-Stats to level
-Never level ressistance
Here is a weapon upgrade chart.