Actually, this is the sub-forum to post questions (the 'help' in 'Help/Tips/Tricks').
You may just be too high a level for the area you are in. Combat is fairly level dependent, so enemies a few levels above you can be quite difficult, depending on your character build and technique, while enemies 4 or 5 levels below stop doing damage.
If you increase the difficulty it would make opponents tougher (additional hit points, at least), but I don't know if they would do more damage...
You could try un-equipping some of your armour, to see if giving yourself a handicap will make the opponents more challenging.
Welcome to the forum.
