So, for the second time in Skyrim (accidentally deleted a level 8 mage), I have delved into the Pure Mage Archetype, and for the second time, I feel ridiculously disadvantaged in combat when opposing higher level enemies, (Bandit Chiefs etc. ) I find that because I am not wearing armour and instead opting for Novice Robes, my health is absolutely obliterated by any enemy with a decent attack. I play on a fairly easy difficulty, Apprentice or Adept I think, but I feel there is no effective way of making up for the shortfall in not having armour as a mage. Sneak/Thief classes have the sneak extra damage ability, warrior classes obviously have the armour to protect them, but I feel I am just, in combat as a mage burning through copious amounts of potions while I try and zap bandits to death. I guess what I have been trying to ask, is there any effective way (other than Restoration, which detracts from my ability to kill) to counteract what I feel is a fairly blatant disadvantage in combat?
Thanks guys!

