Leverage like the as double edge of swords, high leverage high potential profit but higher risk too, because high leverage can lead a trader to become reckless in decision making, which its allow opening bigger lot size even with equal capital, and it will result from margin level being narrowed and close to margin call level, if margin call level triggered, the broker will close position until level margin above margin call level, but if no sufficient capital to push margin level, the account will be faced stop out and the broker will send the rest equity on the account balance.
Usually, expert traders suggest for beginners using low leverage to learn trading to prevent from greed that becomes most disease many beginners.