the good trader is a trader who knows how to manage his risk and money , this is the expensive knowledge and ability.
there is anyone who already make himself as a good trader by part time Forex trader ? i never seen this kind of experience
i think there is no one who can control emotions when trading in practical. this is a common human nature.
The best tip is to keep track of what you are doing. Use a trading journal, I use a spreadsheet, and see where you are failing. And regularly backtest your strategies.