In my opinion we can start trading at the best moment when more than one market is open. And the bes day usually occurs in mid-week. Do trading if you are sure about your analysis and follow the trend is ongoing. You also have to understand that if you hold a position in alonger period of time then you will be at risk of substantial loss or gain great benefits as well. But there is a good idea to always use a stop loss and take profit order to maintain the stability of your forex account.