When most newbie traders venture into the world of trading forex online, they have only one thing in mind: to make lots of money, and to make it quickly. Money management is a concept many of them have never used and to which they certainly do not give much thought.
The truth is that without proper money management an otherwise profitable trading account can turn into a loss.
A money management system will help you decide how much to risk on any individual trade (usually as a percentage of your trading account), how many different trades to have open at any given moment and when you should exit both profitable and non-profitable trades. It will also guide you regarding position sizing, i.e. how many contracts of a particular trading instrument to buy or sell at various times during a trade.
Without a money management system, you could easily make mistakes such as risking all your money on one trade, exiting profitable trades too early or hanging on to losing trades until they become disastrous.