Beginning advice? Just play the game first. Experiment with different skills and weapons as you level up. Once you get to veteran ranks start worrying about your gear/build.

However to avoid seeming like a *** as some people have called me, i will leave you with some things to work toward.

Level up your mages guild skill line as fast as you can. Get magelight and use it till you can morph it to inner light. Start with destruction staff and then restoration staff when you hit lvl 15.

Get Strife from your siphon tree, that will be your main dps move. Morph it to whatever you want. Also grab shadow cloak and morph it to dark cloak and get killers blade and morph it to impale. Then destructive reach from destruction staff. This should get you by till you can unlock other skills.

For armor i recommend a good mix. Somthing like 3 light, 2 medium, 2 heavy to help lvl all three at once. Eventually you will want to switch to 5 light and 2 heavy. Then once you get undaunted passives 5 light, 1 medium, 1 heavy.

Also dont neglect your passives!