Many people find it to be profitable and eventually quit their job to trade full-time. However, there is risk involved in forex trading and it is easy to lose money too. Do not trade on real money...
Foreign exchange trading is done on the foreign exchange market and allows for conversion of currency. Participants include banks, corporations, and speculators.
Most countries will offer foreign exchange. Countries like Australia and USA offer good deals. Although they accept students, some students from other countries may experience racism.