I have just started out out playing a a High Elf stealth-mage in Skyrim and am wondering how to build up my character. I will definitely need Stealth and Illusion so I should should start sneaking everywhere and casting Fury and Muffle, I guess. My offensive options magic-wise are either Conjuration or Destruction. I also dislike followers since they get in the way and prevent me using my spells. My goal is to get Quiet Casting perk so I can attack enemies without being heard by sneaking around them. The problem is that perk comes only at 50 Illusion. Since I will need Illusion no matter which offensive magic path I take I am wondering which one I should take to stay alive early on.
Destruction has good attacks especially with dual casting but with Conjuration I can have someone else do my fighting for me or build up one-handed or archery by conjuring swords and bows. Also, does Calm or Pacify work on Dragons early on? I'm thinking I could run away instead of fighting them early. I currently have a level 8 character at 29 Destruction but pretty weak on other skills. I can kill bandits with one blast using Lightning dual cast but magic NPCs are a lot tougher. I get killed easy. I'm thinking of branching into other schools of magic. So whats the recommendation for an early on character trying to play this path? Which type/guild quests should I take? I realize Winterhold is a must but may come across many magic NPCs in that, don't know. Maybe I should focus on side/misc quests first? I guess my main questions are how I should play early on and which guild quests to focus on at this stage?