What are the choices?
I have never, ever regretted a run. Oh but I have regretted not going.
You just have to go. Put your shoes on and go. It's hard for all of us. Talk to any runner at any level and they will say the same. Imagine that... you have something in common with the likes of Melissa Moon or Nick Willis. They have the same choice as us every day... and it's not easier for them to make that choice.