Dark Souls isn't hard as much as it demands that the player pays attention. Anybody can get through a Dark Souls game so long as they...
1. Always stock up on proper items.
2. Learn to teleport back to the bonfire before they lose all their souls.
3. Summon Sunbros to help you conquer the boss.
4. Don't die to the boss when you've got 3 sunbros helping you out.
5. Actually explore the level that you are in, for loot.
6. Build a character that isn't trash.
7. Fight enemies one at a time, or in as few numbers as possible.
Go back, and play Dark Souls 1 with the pyromancer. Do all the things I mentioned. It'll be a walk in the park.
After that go back and play with a Theif. Never use anything but your stock theif armor and knife. Don't bother hunting down titanite shards to upgrade your gear. Instead just upgrade your gear with whatever titanite shards are easily found on the main path. Don't bother trying to find every last Estus flask shard or upgrade. Instead try to get to the end game with just a couple more sips, than the base Estus flask provides. Don't summon sunbros. Run forward in every level like an idiot, and try fighting three or four enemies at once instead of baiting them out.
Oh wait you died over and over again playing like that? Git Gud then!
