Using stock characters, I have gone through a Dunmer Rouge (level 3, one-shotted by Dwemer spider thing in Arkngthand), Dunmer Agent, (Level 4, killed by trapped door in my most careless death) a Dunmer Scout (level 2, killed by Snowy Granius' spear), a Bosmer Acrobat (Level 1, died in Addamasartus), and finally I have started with a Breton Mage under the sign of the Mage. Level 1, Day 6, Evoker in Mage's Guild, Blades Apprentice.
I've hit some pitfalls:
My characters rarely survive their first week out of prison, but still level up fairly quickly and I spend a few days pounding on mudcrabs before I set off for Balmora. My Mage has been IMPOSSIBLE to train. I have raised my Destruction and my Alteration skills once respectively. Going on fetch quests for Ajira has raised my Athletics considerably and that's about it.
I am so low level that I am finding it difficult to make any money, I am currently trapped in Wolverine Hall with no real way of getting home.
Could I get some tips and tricks for playing magic users? Better builds, spells to buy, and ways to raise my skills on my own, etc. The UESP hasn't been the most incredible help for some reason.