I'm struggling to find places to sell stuff in Skyrim. It was much easier to do this in Oblivion but there seems to be a real dearth of retailers with plenty of gold coin in this game.
Also, as I've progressed I've discovered how susceptible I am to fire. Is there some kind of fire protection ring or something similar I could acquire? I recently died at the hands of Cultists who kept bombarding me with fireballs. I can manage one or two but they seem to appear in groups of three or four.
There's the
Investor perk in the Speech tree that boosts all merchants by 500 gold, but you have to be level 70 in Speech and I don't know how many other perks you need to take to get it. Also, if you get Speech 100, the master trader perk bumps that up to 1000 gold. But Speech 100! I wouldn't know how to even grind up to that level (In Oblivion you did that by selling everything you had individually as the sale of a bundle of things only got you the same increase in speech as the sale of one individual thing. Skyrim might be similar. It was tedious to do, but if you wanted that sweet, sweet 100%....)
As for fire resistance, how is your alchemy? I forget the exact recipes, but there are quite a few combinations that give you fire resistance potions, (Dragon's tongue and Snowberries is one). If you go that route, you may want to invest a few perk points in alchemy to maximise potion strength etc.
There is also a resist fire enchantment, that you can apply to apparel, but you need to find a piece of clothing with that enchantment first, so that you can learn it. That has to drop randomly for you. Again once you have it, you may want to invest points in your enchantment tree to maximise any enchantment you make!
If you are getting swarmed by attackers - having a companion with you will take some of their attention away from you, and you can also conjure another helper to push the odds further in your direction. The flame atronach is apprentice level, so not too bad, and gives you something that is fire resistant.