All or nothing

I have to admit, I am an all or nothing person. I wake up thinking about ways I can raise money for World Vision, then I think about my workout and my running. I am excited and nervous all at the same time. I think about the wall that all marathoners face during the run. Is it going to be for me at the 20th mile or the 18th mile when I hit that wall? The wall of exhaustion where my body says no way am I going to continue. Can I give it my all? Can I leave everything I have in me on that course? Can I meet my goal to finish in six hours? I don't know, but I am hopeful and I know that God doesn't take you somewhere to leave you hanging. God always provides. I truly understand that there comes a time when you must do something, something that is bigger than yourself. Something that will forever change your life, mentally, physically and spiritually, for me that time is now. I am stepping out on faith and I want to make a difference for God. That's why I never give up and I continue to workout and run and improve.
Yesterday's workout:
Spinning class 45 minutes.