I was in the same boat so to speak at that level....I went with warrior concentrating on one handed 2 handed and blocking etc when I got to around level 34 i found it started to get that little bit too easy I was nearly walking through everybody and I thought it was starting to make the game a little bit boring....So I decided to lock all my armour away and switch my style of play and went on a few sidequests to start to level up as more of a mage character I think I did right as it has made the game that little more enjoyable as I now have to think about what I'm doing instead of just running into a battle swinging a sword at anything that moves with a flame atronach in tow