a warm welcome on this forum
Hmm, big damage ...
Is it possible to write down your stats here in this topic?
Is this the first Divinity game you play? If so, welcome in the Divnity Universe
Do you know which kind of enemies do the most damage? Rangers? Mages? Melee combat fighters?
Your strength affects your Melee Damage Protection (and more)
Your Dexterity afects your Ranged Damage Prot. (and more)
Your Intelligence affects your Magic Damage Prot. (and more)
And how much HP do you have? Maybe spend more points in Vitality (or via Charms or Enchantments).
And your Gear can help to give you more protection! Plus some Charms are to be found to give more protection against all that evil!
And have you your Creature with you to help you in battle? (but you must first do the Quest "Vigor Mortis").
Or you can summon a Ghost to heal you or a Undead or Demon to help you.
For example the skill "Evade" can help you.
Good luck and have Fun !