As mentioned above, any market place that has the "potential" for high profits also exposes the participant to high risks and potential sizeable losses.

There are certainly no guarantees in the Forex market and anyone who tells you otherwise is inexperienced or misinformed (or dishonest).

There are conservative strategies that can be used in the Forex market that reduces associated risks and increases the potential for profits.

There are a number of Forex traders that are quite content with the potential to generate a consistent conservative monthly return exceeding what a bank would pay you in a YEAR.

The key is to study the market. Only demo trade while you are learning the workings of the Forex market. Never invest with money that you cannot afford to lose. And use sound money management and emotional management techniques.

It is possible to make money in the Forex market. Some of us actually make a very comfortable income by taking a conservative approach.
References :
full time Forex investor and mentor