Mages or magic attack users always get the best of you or you find that out of your friends, party or by your own standards you run out of SP way too often, spend too many potions which you don't have money for. Start investing for a few levels then.
You can always follow what other say to use for their builds. In general and for the average player it should work. But in the end even if you followed this build exactly; you might still use very often skill I wouldn't think you'd use since in my opinion there are better skills or you know something or found some way which I know nothing about. Also I don't know how you play. Do you have difficulty targeting specific targets? do you love AoE attacks the best? I don't know so it's best to customize your stats according to your playing style. Invest wisely since there is no going back and you don't want to be in a bad place later on.