Advice wanted/needed for big hike. Not prepper related

[Metroyeti]

Food luck, a friend does the allendale challenge in under 10hours, for her training they only do upto 18miles and she swears by those walking sticks, handy coming downhill and on a straightpath they help maintain your speed. I wear 2sets of socks thin with bigger on top daily, if I go on long walks I rarley get blisters