No stop / oversized / revenge / chasing / no journal / copying / news-trading / no plan / no discipline / hoping.
No stop loss. Oversized position. Revenge trading after loss. Chasing a move. No journal. Copying signals. Heavy size during news. No fixed strategy. Relaxing discipline after a win. Hoping during a loss.
Most mistakes come from one root: wanting to prove you are right quickly. Markets do not reward the desire to win. They reward repeatable process.
Before every trade, write entry, stop, target and invalidation. Size the trade from account risk, not emotion. After consecutive losses, take a mandatory break. Fix one mistake per week, not ten at once.
If you can fix only one mistake, fix position size first. Small size gives you time to learn. Large size turns one mistake into account damage.