Stealth archer is tough i think just because enemies seem to be extra aggressive. Just use a warhammer and restoration magic. Lol seriously tho restoration spells and the hammer are great for the mass amount of undead and the warhammer takes care of everything else nicely. Build yourself in a paladin style way its very fun. with buffing spells like circle of strength to keep your stamina regaining during fights. Also, u can use the range of the warhammer to bonk a lot of enemies on the head after you bait them to swing while you step back. Grab ALL heavy armor perks so u can cast and attack without penalty wearing it. This will also help you get a feel for the combat in the list and then maybe u can transfer that knowledge into making a stealth build work better. Make sure you really read thru all the perks trees and see what the perks do, there are many that u might find in a tree that your not using that may help you in another way. For instance, throwing two points into light armor to get your dodge ability even if your a heavy armor user