I don't know what the event "Breast Cancer 3 day" is (is it 3 days of running or...?)... but I want to wish you much luck in your training!
I did the C25k and thought it was a great program and it changed me from a total non-runner into an addicted runner, so I always highly recommend it!
Loving yourself is an act of will. It doesn't just happen, you have to choose it.
My blog: On Hiatus.