As an investor, you should never get into something you have no idea about.
Risk is "a situation where an individual exposes someone or something of value to danger, harm, or loss."
In trading, the tendency to lost money is very high, in fact, the trading providers/brokers outrightly tell you you will or may loose all your money trading on their platform.
You will see warnings like
Your capital is at risk. You should not spend more than you can afford to lose and should ensure that you fully understand the risks involved.
Not everyone will trade and succeed and not everyone should trade especially if they have no idea what it is about.
The easiet way to lose money investing is, through not having an idea what that thing you are getting into is.
Before venturing into investment, make sure to learn what it is about, understand how it can be good or bad for you.
Also, make sure to allocate your funds smartly by making sure your portfolio doesn't bleed out in just one trade.
The wise men who make money through trading have studied the game and have some grasp on the market where they operate.
Trading is sweet and it sure has it perks but then, it can give you a bleeping heart attack if you get it wrong half of the time.