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I am running the Edinburgh Marathon in 4 weeks and it's my first ever go. I've been running for just under 2 years now and have done a few 5 k's, 10k's and half marathons.
I have been building up to my long runs for sometime now but just can't break 15 miles and am due to do 18 - 20 miles this weekend, I am really worried that I don't have it in me and if that's the case am I just being stupid trying to do a marathon at all.