it is always important to make a good trading plan with a good and tested strategy so you can trade well in the direct market and get a good amount of profit from it, so yes planning is needed in trading. and every trader must have his own strategy to provide perfect trading and that strategy can be obtained from training on a demo account. if a trader can practice on a demo account for a long time then the trader can understand the forex market perfectly and can also get a good strategy to provide perfect trading on his live account.