Is it your plan to play only with 2 characters or did you just not know, that you could recruit up to two additional characters? The start is pretty hard, even more if you play only with two characters, just because of the insane amount of armor they have.
My friend and I started with a scoundrel and support mage, we recruited lizard as warrior and elf as ranger. Focusing on one kind of armor makes it for sure easier to kill enemies. This can also mean, focus physical damage on Enemy A and magic damage on Enemy B, but not do both on A.
