Hi, so for Skyrim I am going with an archer mage combo, which I think is a bad option, because I always need a companion with me to tank damage while I stay behind and shoot, and if enemies do get close to me I have to switch to shooting flames, I'm quite far into the game, any suggestions to improve my build?

EDIT: I'm focusing mainly on destruction, some restoration

I use mostly destruction magic and bows. Bows for sneak attacks (or daggers if I can get really close, as x30 damage kills almost anything), and magic for when enemies get close. I think I'm somewhere between level 25 and 30, so I don't know how well this will work at later levels, but it's working for now. You'll need the perk that makes dualcast spells stagger enemies, though.

yup that's exactly what I'm doing, but on the bethesda forums, someone was saying that instead of carrying bows around he would do bow summons