I always play a warrior type character in these games.
Should mix it up and just go Magic.
Can you just specialise in magic in this game? Or is a certain level of melee neccessary?
Up to you

Even as a warrior, you only need to specialize in one weapon type and heavy armor, then you can mix in some magic to.
You just need to remember that you will only get around 50-75 perks in one game, so you have a lot of options, but only very few that you can actually pick.