With this amount of leverage, even very small moves in the value of a currency can result in quite large gains and losses. You will need to learn the basic rules of risk management to trade safety in the market and how to place stop-loss as well as stop-limit orders (that is, orders to close a position when the price reaches a set level). You will need to take some time to lean about trading plans, risk to reward ratios, money management, position sizing, fundamental analysis and technical analysis before you begin.