I had the same problem ... but I change my strategy later on in the game:
There're all that waypoint scrines for quick travel through the world. All the "loot" I can find in the suroundings of a waypointcrine I let it on his place and come back later to pick it up (herbs, Ore, Gem and things I don't need immetiately), but I place a flag on my map so I can "see" ... Only Gold I pick always up because I think gold give NO extra weight?
And I put 3 points in the skill "Packed and Ready" (up to 160 (weight?) you can carry).
Later on, when you have your Battle Tower and Trainer, I have read, you can unlearn a skill and put skillpoins in another skill. So in that case I have the possibility to unlearn Packed and Ready because now I have a Battle Chest to put 300(max) in.
There're many possibilities to play D II and solve problems on your own way, Great, isn't it?
But also this Forum is Great! Learn from each other and take a helpfull hand for ech other