WIth Forex trading there are a few important things to keep in mind. First, Forex trading is highly leveraged with ratios of 50:1, 100:1 and even 200:1 depending on the broker and the size of the trade. You can make a lot of money very fast and you can be wiped out just as quickly. You have to make prudent use of stop and limit orders.
Second, the Forex market is much more volatile than the stock market. You really have to have a firm grasp of the fundamentals of Forex and of what makes the market move. That includes economic, social and political factors here and in other countries. Forex markets can change in the blink of an eye with breaking news.
Third, unlike the US stock market, Forex markets are open around the clock. As markets in the US open, the Asian markets are opening. As they close, the European market are opening.
Because of these and other things, yes, the Forex market is risky. Much riskier that simple stock trading.