Traders use different strategies to predict the future market value of an asset and make money from it.
One possible strategy is to follow the news. Usually, novice traders use this strategy.
More experienced traders take into account a number of factors, use indicators and know how to predict trends.
However, even professionals trade with losing trades. Fear, hesitation, lack of patience or the desire to make more money can cause losses for experienced traders. Simple risk management rules can help maintain sanity.