Thank you everyone for the warm welcome and all of the replies 
beyondburma I was also exhausted yesterday and, even though I'm very used to running 10k these days, my legs were very sore. I agree, it was an amazing experience (and I've already told the charity i ran for to sign me up for next year
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Have you gone beyond the 10k and started your HM training yet? You are doing unbelievably well, to have only started in late March - my inspiration! (Oh and one further similarity is that I can't add up to save my life
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Although I said I can run 3 times a week, I somehow forgot that it was the school holidays and I will have to cram in most of my runs when my boys go to their Dad (I'm a single mum.) So some weeks I won't be able to do anything and others maybe 4 or 5 training sessions - erratic at best!
Morrigu it sounds like you are doing brilliantly too (although a comparative youngster!) I think you are right about the just getting round it and improving on speed in the future. I mean, just to complete a HM is an incredible achievement in my book!
cinammongreyhound thank you, that makes perfect sense. I am actually signed up (eek!) to the royal parks half marathon - a moment of total madness.