Discipline is indeed difficult, bro, especially if we experience a loss, it feels like I want to slam, my discipline is considered a determining factor of trading success. Discipline in my opinion is how we can remain motivated, survive, and focus when we experience a loss. This discipline will teach us to be responsible for the system we use. Generally, failure in trading is not caused by a system but less guarded discipline. As good as any system if we don't discipline and focus it will be in vain.