Dark Souls is hard, make no mistake. But don’t despair. Dying is totally ok, the worst that can happen to you is losing some saved Souls, and they can always be replenished. Equipment you find and upgrade, shortcuts you unlock, and attributes you increase are all permanent, and most importantly, the knowledge you gain exploring and fighting improves your gameplay even as your character gains strength.
If you’re having a really rough time, take a break, cool your head, and come back refreshed. Think about what you’re having trouble with. Try a different approach, or explore a different area entirely. Use your items, use your spells, try different weapons or armor, and experiment with new tactics. Do not hoard your consumables, use them!
And, even though it isn’t necessary, remember you can always go monster hunting specifically to farm more Souls and gain levels. Sometimes a bit more HP or Stamina can tip the scales in a tough figh—opening up a new spell or weapon can improve your odds.
There is a vibrant and thriving online community around Dark Souls as well, so any time you need a bit of encouragement, seek out some fellow fans and engage in “jolly cooperation.” Just be wary of spoilers if you’re new, your first run through the game is a one-time experience!