I play a Heavy Armor Sword and shield Imperial and I haven't had much difficulty, except with sabre cats, for some reason Dragons, Mages, and Bandits are fine, but Giant Feline, maul me to death. Anyways my suggestion would be to make a character that wear heavy armor, levels up health every time, and then get the Lord Stone east of Morthal. Beware that the path to the Lord stone is guarded by frost trolls using the warrior stone and power leveling through a few caves is recommended or just use sprint shout to run past them.