Well yes, that would be a problem when trying to fight enemies who are 10+ levels higher.
You can buy new weapons from the merchants. The women who sells weapons and fish in the Great Market, the Goblin merchant in Lanilor Lane, and Mysus and Albetza in Lanilor Lane if they are still open for business. All of them should have unique (Gold) weapons for sale which are the best in the game.
If you need more gold send your runners off to find Malachite and Diamonds. Repeat several times to get several thousand worth of free stuff to sell.
