Have you tried an out and back route from home to help?
although not strictly C25K, if you measure a route online to say 2.5km or less out from home you can set yourself the goal of running most of the way. Walk to the turn around point and maybe some more of the return trip up to your allowed interval.
if you know home is at the finish you will probably push on to the end of the next ten minute section. You will always know you're just a few minutes to go and it becomes easier to keep going