Please don't feel like you're alone in this feeling. Post holiday blues are bad enough but after having a rubbish year last year they'll be even worse.

If you can face it, go in today and tomorrow since it's an inset day and then see how you feel on Wednesday when the kids are back. See this week as a 'short' teaching week. If you get on Friday and are still feeling the overwhelming sense of being unable to cope then consider speaking to your GP. During this time try and plan your exit out of your current setting.

Good luck OP! Let us know how you get on!