If you're fighting atronachs, flame atronachs are immune to fire damage, and frost atronachs are immune to frost damage. This includes bound weapons (weapons targetted by the firebind, shockbind, and frostbind spells). You might also want to start farming enemies for experience to level up, and then put your level points into health. Enemies will respawn if you just wait long enough.

Basically just type in PRAAN, and hold down enter on your keyboard. until you get something. If that doesn't work, then I don't know how to help you

for flame atronaches, i tend to use the ice starm spell, which for me, 2 shots the ones other than the leading one, which gets plain killed. for frost ones, i have a firebound ebony sword for them