I am on my third try at started C25K and this is the furthest have gotten. I was a little worried about week 3 and doing the three minute runs but I managed to do them all! Then I thought maybe following this is the key! Then I flip to week four which I will start today and run FIVE minutes! They get scarier as the weeks go on! Anyone do the five minute runs easier than they thought?
I was worried about the jump from week 3 to 4 also and now I'm going to be working on week 9 tomorrow. If you are able to complete all three weeks of week 3 then the best thing to do is just move right into week 4. For me it wasn't as bad as I thought it was going to be and I was able to make it through the week. Give it a shot and if you don't quite make it and have to repeat a day it's no big deal, but you may surprise yourself. One thing I did (and still do) is run with a stopwatch. I would start the time at the beginning of each run and go as long as I thought I could and I wouldn't check my time until then. Most times I would be surprised to see I had gone 3:30 or 4:00. By that point I figure I had already gone that far, what's another minute or so? It made it a lot easier for me seeing that light at the end of the tunnel.