Every broker offers a demo account – whether you are a beginner or not, test every new strategy there first. Keep going until the results are conclusive and you are confident in what you are testing. Only then should you open a live account and use your strategy in the smallest volume trades available. Be sure to treat your demo account trades as if they were real trades. You may also use Forex simulation software to simulate market conditions, and create an impression of a live trading session.
Hedge funds – Somewhere around 70 to 90% of all foreign exchange transactions are speculative in nature. This means, the person or institutions that bought or sold the currency has no plan of actually taking delivery of the currency; instead, the transaction was executed with sole intention of speculating on the price movement of that particular currency. Retail speculators (you and I) are small cheese compared to the big hedge funds that control and speculate with billions of dollars of equity each day in the currency markets.
These cover the bulk of countries outside Europe. Forex brokers catering for India, Hong Kong, Qatar etc are likely to have regulation in one of the above, rather than every country they support. Some brands are regulated across the globe (one is even regulated in 5 continents). Some bodies issue licenses, and others have a register of legal firms.
One has to adopt one or many strategies in order to minimise losses and maximise profits. As market conditions vary from day to day, so should a day trader's strategy. A successful day trader has to come up with a new strategy almost every other day, or at least adjust their existing strategy to the new market conditions. In order to day trade Forex successfully, a creative mind is needed.
The foreign exchange market is where currencies are traded. Currencies are important to most people around the world, whether they realize it or not, because currencies need to be exchanged in order to conduct foreign trade and business. If you are living in the U.S. and want to buy cheese from France, either you or the company that you buy the cheese from has to pay the French for the cheese in euros (EUR). This means that the U.S. importer would have to exchange the equivalent value of U.S. dollars (USD) into euros. The same goes for traveling. A French tourist in Egypt can't pay in euros to see the pyramids because it's not the locally accepted currency. As such, the tourist has to exchange the euros for the local currency, in this case the Egyptian pound, at the current exchange rate.