A professional trader always keep his eye on the news which makes the market volatile and decide the trend of the market. According to this he places his position and gather a profit. The time which is required to become professional trader may be 5 years unless he is well touch with the economies. If we have a margin call is very disappointing and frustrating. But we have a margin call is reversed pasri there lessons we can take. If we have a better margin call us pause from the world trading, calm down. If psychologically ready again we can try to start trading with more fresh mind and a better system.