I don't recommend you using Bitmex if you are still starting to trade. It's fun but too risky for a beginner. If I were you, I would start with trading lessons and trials in other exchange platforms, those without leverage. Using leverage is a double-edged sword. You could big time, you could also lose big time. At the end of the day, you are like gambling instead of trading. Use of leverage is best only to those who have studied it well.