Scalping is actually good to involved oneself but needs patient on market movement especially when waiting for the market to drop them buy and when it gains little percentage you sell. To me it's actually make sense if the trader is active trading because it's other easy way to lose if not carefully understand how the price action does because when you scalp and market didn't just pushed up immediately you start getting worried that is why it's always advisable to hold than trade because when you scalp you give it that chance the to completely lose money.
The most difficult thing in scalping is the change of trend, especially when you trade on small timeframes and with a large leverage. The most difficult thing for me in trading was scalping, the main reason was that it required my constant attention, I could not get distracted anywhere during the transaction, because the situation could change at any moment. Trading is not for everyone, first of all, you need to love it and be a very disciplined person who can follow the rules, if this is difficult, then most likely it will be very difficult to achieve success in scalping.