I graduated a couple of months ago and have been using session 9 of c25k to build stamina and try to improve speed. I still only do about 3km in 30mins. I am slowly pushing the speed up on the treadmill at the gym and then trying to replicate when street running. On my last street run I also tried a few fartlek bursts which was fun . However, I was wondering if using stepping stones is a good idea for a structured way forward and to improve my progress ? Am I fast enough yet for these podcasts? Any advice gratefully received.