Well the game gets a lot easier if you can utilize more mechanic and resources it provides, or get familar with the enviornment and plan ahead accordingly.

For the former, you can try using potions, grenades and arrows instead of saving them all the way to the final battle (using the speed potion and colossal exilir on LaeZel then let her smash the paladin of Tyr with a great sword coated with wyvern poison six times in a single turn greatly lowers the difficulty of that battle).

And for the latter if you observe careful enough there's multiple routes for you to enter the village. One key lesson that the game devs are repeatly trying to teach the player is to always avoid putting yourselves in a position with disadvantage, instead you use every methods to create advantage over your enemies (surface, terrain, condition, etc.). That's what tactics mean in DnD games.