OK two realisations.
1. I am rubbish at intervals. I've tried doing interval training using week 1 a few times, and just been super rubbish! I mapmyrunned it, and it turns out that although i was running faster in the fast bits, my "slow bit" running was barely above walking pace. I will try it once more but i'm not a fan!
2. I CAN run further than I think!! On Saturday I ran by myself and I did 6k for the first time. Then on Sunday I ran with my OH (he was nice and didn't speed off into the distance) and I did 8.5k!! Super chuffed (and a little exhausted), but it's great to know what I can achieve when I push myself.
I did four runs last week, which ached my leggies a bit, so I think this week I'll stick to three!