The obvious answer is "stop training for a marathon." But it doesn't stop hurting when I stop training. I gain weight and have more pain. And I have depression and a host of other problems. So, I will continue to train. And when I get to the 18 to 20 mile days, I may be forced to make a decision.
For now, I am icing regularly - even at my desk at work. I am sleeping with the boot, which does help. And when it gets really bad, I slap on the KT tape. I have no idea why that stuff works, but it does.
You know, the scars of someone calling me a "quitter" have never gone away. I know I do persevere to a fault. But I do also know I am capable of changing plans because I have done so.
But a healthy dose of perseverance does a person good in sobriety. I want to stay sober. So, I persevere in doing what I need to do to stay sober. And I persevere in my relationship with God, always striving for growth, because I am clear that is where my "ability" comes from. I persevere in AA even when I haven't wanted to.
And as a result, I get to live this life. And that is good.