Well I think the best thing to do is to be ready with other options. You could perhaps look for other work sending your CV round with a letter, or advertize for private tutoring work (my youngest does this when he's short of directoring work) and also work out your finances and see what you really need every week. Like my marking think what alternatives you could do- perhaps part time to fill gaps.
All the best
well I left at 59 because they were doing one of their frequent reorganisations and the offer came up.I did worry about managing as there's only me, but I do A level exam marking and that pays for the holidays and extras so far, so I've no regrets and I've found plenty to do, in fact and don't regret it at all. I can choose what and when I mark within reason so it fits in better and keeps the brain active! I think these are the real golden years before the arthritis and the rest set in!
Happy to hear from you.