People loose money in forex when they become impatient and want to earn handsome profits all together. Forex trading or trading in general requires good experience, strategy to manage capital and risk involved.
If a trader wants to gain from this market, he needs to place the lots size after determining its risk appetite. Just like the saying, 'Slow and steady wins the race' is applicable in life, it is the key to forex trading as well.
The more your practice, the more you learn.