these games are beloved for a reason. there are a couple of things you should know though:
don't level resistance!
shields are a crutch imo but don't be afraid to do anything the 'cheap' way. its totally ok to bow and arrow a strong enemy down from a distance or lead it into a trap.
hidden passages can be revealed by hitting walls.
if the enemies are too hard, the game probably doesn't want you to go that direction.
this game world has an incredible amount of thought put into it. don't hesitate to backtrack to certain areas wearing certain items to see new things or moving npcs, and read all the lore descriptions (many keys have their lock locations in there!)
enjoy the experience, and don't be afraid to die.
take the old witches' ring!
amazing view ahead… praise the sun!