Peace of mind is not something sought. It is not something that you can attain or capture. In fact, like a cat chasing a laser pointer - the mere act of chasing it nearly assures its retreat.
How then, do we attain peace of mind? Simple: Do everything you can, at 100%. There are no regrets when you act in this way consistently. You know you've done what you can. Let the cards fall where they may, you will have no regrets.
If you are aware that you are not giving 100% you will be less tired, perhaps - but far more anxious about outcomes, and be far more fearful of the future.
Would you rather have a smile that you've worked hard and grown as a human, or a worried, furrowed brow and a sleepless night?
Win through your effort, through the journey, not from the outcome. You goal is, and always has been, to grow and experience life. The rest of these sub-goals are simply fabrications of a deluded consciousness.
Be honest with yourself, and give your all. Live with passion.
Recommended Resource: Notes to Myself: my struggle to become a person
Sensei Ono, Shinka Martial Arts
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