Study the markets, fundamentals, and technical factors leading the price action.
That we have placed this so low in the list should not surprise the experienced trader. Faulty analysis is rarely the cause of a wiped-out account. A career that fails to begin is never killed by the consequences of erroneous application or understanding of fundamental or technical studies. Other issues that are related to money management, and emotional control are far more important than analysis for the beginner, but as those issues are overcome, and steady gains are realized, the edge gained by successful analysis of the markets will be invaluable. Analysis is important, but only after a proper attitude to trading and risk taking is attained.