Bad times

4.02 miles
40.43"
10min 7secs a mile
I ran round the downs and it was stupidly hard work. I did the 5:2 diet for the first time this week so I guess there was an issue with energy but it's ridiculous. I am so unfit it's embarrassing. Is it an age thing? I stand no chance if it's to do with age. So should I continue? I want to feel OK about doing a 5-mile run, that's all. I guess if I'm ever to run 5 miles in under 45 mins I'm going to have to work really hard, and I don't know it I've got in me to go down that line.
I did enjoy running round the downs though - far nicer than round the streets. It was the 1/2 marathon today and I kind of know there is no chance I will ever do one of those again. Not that I'm that bothered tbh.