You have equiped the weapon so it "works" as far as this means you use it while fighting. The reason you made no damage is caused by three points.
1. This is a very cheap beginners weapon with only little damage possible.
2. You probably haven't fought enough with it to have a good skill (though you made quite many attacks which means this could be not the case).
3. Droch is heavily armored. Even more expensive and better weapons can't do a lot of damage to him. You'r weapon simply can do about no damage to such a good and expensive armor.
You should try duelling with younger knights that are more equal to you in equipment and experience. Then the damage will follow.
Hadrian was faster...