at the beggining just mainly grinding, once you get decent amount of silver can try enhancing, but can be quite risky for begginers, so would just recommend grinding and exploring different grindspots. there is website called garmoth.com where you can see how much silver you can make at different grindspots, would recommend to check that
Bairog-san, i m sorry for the bad luck.. All we can do is to blame Rapolas for the luck stealing magic technique. Hope you`ll succeed soon! Kiss you ma senpai :*