Yeah, "ouch!" comes pretty close. I haven't tried it with a Level 8 character, but did do it with a Level 15-ish character on PC EU (an Arcanist) with no CP available.
1. Lay down a DoT. I use Wall of Elements and specifically went looking for a level-appropriate lightning staff to do it with, but the strategy is to keep her within that AoE as much as possible.
2. At Level 8, your Arcanist spammable is probably Runeblades; better if you can use the flail (Abyssal Impact until you can morph it), but use what you've got.
3. Beam her and her doggies (bonus point for managing to keep all three in the beam). The doggies will respawn in time, but they are a pain and get dealt with the fastest.
4. Heavy attacks, dodging, and Runemend between beams. Because your skills are chewing Magicka at this point, the Heavy Attacks are more for resource sustain than damage.
5. Unblinking Eye when you've got your Ulti minimally charged. There is no advantage to having 500 Ulti instead of the 175 needed to fire. Problem with this is that Level 8 usually doesn't have an Ulti.
6. Crown Tri-pots quickslotted for the times when Runemend isn't enough, but the whole idea is "Urfan dies before you do."
Urfan is a tough fight for a low-level, even on Adventurer difficulty. If you don't mind abandoning and retrying when you've got a few levels and an Ulti, then that might be the more workable solution.