Endurance
the ability to withstand hardship or adversity
especially: the ability to sustain a prolonged stressful effort or activity
Should you hire a coach?
When you hire a coach, you are getting more than a training plan.
You are getting someone who is invested in your dreams and will work with you to make them a reality. This means understanding your goals and working with your schedule while also pushing you to exceed what you think you are capable of.