Market does not run as per our position or in favor of our position. It runs as per his own technical levels and the depend upon news ( about the economical and political condition of major countries). So if I do any wrong level entry which cause me loss, first of all I check whether I have done as per my money management or not? If yes then wait with the patience, if I found that position is over for my margin, then I just close the position at loss and wait fro a fresh opportunity and trade with small quantity than previous.