My poor trading habits in my initial days of trading were that I used to be very impatient but after facing some losses, I learnt how important it is to be patient if you wanna go ahead in the forex market.
It's a good question who points to the terrible habit in trader life. First, who doesn't have patience and always depends on luck in trading. Second didn't watch the strategies and neither read the analysis nor saw the mistake they did in the past. Always be positive and start a trading with new strategies.