Better done than perfectly 'none'
Discipline is the deciding factor for those who can and those who can't. For who thrives and who falters, who wins and who loses. There is no single way a person can last, in any environment, for any prolonged period of time without discipline.
The discipline to wake up in the morning, do your chores, your breakfeast and go to work.
The discipline to keep the relationship alive.
The discipline to keep improving yourself.
The discipline to know when to stop and try something different.
The discipline to just do it. You just need to wake up and do it.
Feelings are important, I get it. It is important to listen and understand. But the real difference lies between those who are ruled by their emotions and fears, and those who are guided by discipline.
Sure, staying in bed feels good. But it feels even better to get up and do what needs to be done. The dopamine hit from small wins lasts far longer than the fleeting comfort of staying under the covers.
Be disciplined. That's all it takes to succeed.