Currencies are always traded in pairs, so the "value" of one of the currencies in that pair is relative to the value of the other. This determines how much of country A's currency country B can buy, and vice versa. Establishing this relationship (price) for the global markets is the main function of the foreign exchange market. This also greatly enhances liquidity in all other financial markets, which is key to overall stability.
Decide how you will finance your trading in advance: Only one kind of money is good for investing, and that's the kind that you are willing to lose, and preferably without damaging your physical and/or mental wellbeing in the process. Every profitable trader is profitable in their own way, while every loser experiences losses exactly the same way. Remember, use every available opportunity to learn. It's a never-ending process!
FOREX.com is a registered FCM and RFED with the CFTC and member of the National Futures Association (NFA # 0339826). Forex trading involves significant risk of loss and is not suitable for all investors. Full Disclosure. Spot Gold and Silver contracts are not subject to regulation under the U.S. Commodity Exchange Act. *Increasing leverage increases risk.