When you have been planning something big for a while then things beyond your control like weather, illness, injury, other people or events stop it happening how do you respond/react?
I have had 3 walks postponed this year because of things beyond my control, 2 being the flu. It doesn't get easier, it just gets more frustrating. I'm a perimenopausal woman in my 40s so naturally I cry

Once I get that out of my system I start feeling really bad because I have failed the people who support me, my family and friends, until I remember their love is not conditional on success or failure

Then I start making plans to try again later and concentrate on getting better.
It is very easy for me to get stuck in a negative thought cycle during those few days or weeks afterwards but I try to get a bit of a positive mantra going through my head. Even if I don't feel the mantra (or happy self talk) at first it does start to have an effect after a while.