Believe it or not, that actually sounds great to me. As an avid fan of mages in all games, I found that mages in TES games were too easy to use, as you could throw a couple of spells, backpedal a bit, and essentially murder anyone. The fact that you end up in situations like that make me happy. If you want my advice (you probably don't), carry a couple of enchanted daggers. I used to do that in Oblivion for the lulz, but it was insanely useful due to their low weight and quick strikes. Once you throw an Absorb Health or some form of Elemental Damage on there, things fall quickly. I don't know anything about Skyrim, but the trailers showed some ice floor spell, right? If you can get some sort of nice dagger, maybe you could use the Frost spell, then rush in for a few hits?
The other option is to turn around and run. Backpedaling is not supposed to be a thing anymore.
The other option is to turn around and run. Backpedaling is not supposed to be a thing anymore.