Keep in mind that the price movement is almost unpredictable, even the experienced traders have their own losing trading history in their past but they still considering it as the part of their trading career.
But bad plan wasn't from the trader itself, it just when the market doesn't go with their plan and it's not a bad plan though. Bad planner is when they're change the plan and didn't stick to their first plan when the market doesn't go with their plan.
You mean daily trading? I'm not taking time too much since I still have 9-5 job, 1-2 hours is more than enough to see charts and put some long term order...