Try another area first, and return when you have better equipment, etc. Does your current equipment have enchantment slots you can change or upgrade to help?
A different landing spot may help as well. If you are at the edge of a platform with a rock wall to one side, there are a limited range of directions you can be attacked from as you advance.
Maybe summon your creature and Hide in Shadows (at least long enough to move out of the line of fire, heal if required and attack from a different direction).
The game was originally designed to allow the dragon form to attack ground opponents, but it required too much memory and had too much of a frame rate hit; see Lar's post in the topic
Design ideas for Divinity 3 (mostly for Larian).
