Thought I'd drop a line to all those about to start week 5 - do not fear, you can do it!
I started C25k in February, have taken 10 weeks to get to get to week5, and was really drdreading this week. But this is the first week I haven't had to repeat, and I've got through each run. I didn't think I could run for 5 mins, then didn't expect to get through the 8 mins, and no way could I possibly run for 20 non stop! But you know what? I did. And it felt amazing.
Trust the programme. It's genius.
And I've been grinning all afternoon