So I my companion and I go to Morvonskar to finish that drinking quest, and we're in a room with 2 people across from us and 2 more people up the stairs. One of them is an "electromage" that one hits me before I can react. So far, my best results were killing one necromancer with archery, then stupid Uthgerd charges in, gets destroyed by the remaining people, then I'm rushed by all these enemies. I've tried summoning stuff, using fire rune, archery. and melee but it all ends in a one hit kill before I know it. How should I continue?

Go buy lots of buff potions. Like lightning restistance and stuff.... I found these helped me alot in the early game.