As with most forms of financial investing – stocks, futures, etc., there are risks. There are no crystal balls to show you what is going to happen next, so your exposure to these risks is largely controlled by your money management practices.
To become a forex trader, first, you have to learn it. It is not very hard to learn forex. There is enough free information over the internet. You just need to spend a few months to learn everything. But the more important part is the experience. You have to learn how to use your knowledge to trade and make money.