Volatility is what keeps your trading activity moving. However, if you're not careful it can also completely destroy it. When volatile, the market moves sideways, which makes spreads grow and your orders slip. As a beginner Forex trader, you need to accept that once you are in the market, anything can potentially happen, and it can completely negate your strategy.
Forex is a portmanteau of foreign currency and exchange. Foreign exchange is the process of changing one currency into another currency for a variety of reasons, usually for commerce, trading, or tourism. According to a recent triennial report from the Bank for International Settlements (a global bank for national central banks), the average was more than $5.1 trillion in daily forex trading volume.