When you're busy enough, "boredom" isn't a thing - it just feels like a break.
It's fantastic and rare.
A chance to think, to put things together in your head, be intentional with moves forward, and actually really wonderful.
Nobody wakes up feeling great and ready to get after it every day. The work is accepting your feelings and taking them along for the ride. It requires equal parts grace and grit, self-discipline and self-compassion.
Keep showing up.
What makes your mind stronger, and more able to control your emotions, is internal discipline and toughness. No one can teach you this skill; you cannot learn it by reading about it. Like any discipline, it can come only through practice, experience, even a little suffering.