C25K week 5 day 1 tomorrow, nervous!!

My 13 year old son and I are doing C25K. We've done good so far. We finished week 4 last week and while the 5 min runs were challenging, they weren't too tough (ie- I didn't feel on the verge of death). I finished the week feeling great and really enjoying my last run. My 13 year old, not so much. He's at an ideal body weight so doesn't have being overweight working against him like I do, but he isn't as motivated to push physically as I am. He's sticking it out though because he doesn't want to be bested by his old, fat Mom. I don't make him run, I'm not that kind of parent. This is something we wanted to try together. Kid is finding out that running is hard work.

Anyway, I'm nervous about week 5. Tomorrow will be three 5 min runs. I think we can do that. The 8 min run on day 2 and then a 20 min run on day three are sounding really daunting. I kinda finished this program a few years back and was running 4+ miles (no walking) several days a week. I was out for a run one morning and was hit by an idiot in a truck who went off the road . Very severely injured, it's been a long journey back to running for me. I really want to succeed and I'm really happy my son is doing this with me. I'm not in as good a shape as I was last time I worked my way through C25K. Last time around I'd done months of other cardio and resistance training before jumping into running. I got 1/2 way through C25K and realized I could just keep running. Ditched the intervals, added miles quickly and loved it. This time, I did a couple months of light cardio and then started C25K and I'm feeling the burn a whole lot more. It feels a whole, whole lot harder even though I weigh slightly less than last time around.

I'm rambling and I'm not really sure if I'm looking for much more than friendly commiseration. For those of you who are also working through or have finished the program to get in shape vs starting in good shape and have repeated weeks how did you decide to repeat? Did you wait until each week was easy and then move on or did you wait until you couldn't finish a week and then back track? We haven't had to repeat so far. As a matter of fact, we've run longer intervals ahead of schedule a few times for the fun of it ( when I get in the zone, I don't want to stop. I have to make myself stop to avoid injury. I love to run, my body just isn't quite there yet for what my mind wants to do ). A large part of me wants to keep on schedule since we don't know what we can accomplish until we try (no pain, no gain) but the slightly wiser part of my brain is telling me to slow down and keep it fun.

And yes, we both have good pro fitted shoes. I swear, if my son hits a teenage growth spurt and outgrows his $hoe$ in a couple months I may just cut off his toes to make his feet fit!!!!

I guess I'll see how we do tomorrow. Here's hoping for the best!!