遵循系统 (Following the system)

The hardest part for a new trader is to follow the system despite drawdowns and every system has one.

William eckhardt co-founder of turtle trading fame said:

"That's right.Your job is to follow the system.If the system does something that results in losses.that's just an expected part of it.
Your judgement might be on line over the entire performance of your system, but there's no sense in which your judgement is on line on any single trade"

Though I haven't started any live trades yet, the fear of walking away from a system cause of huge drawdowns is there. any of you guys offer any advice on how to overcome this?