Closed? Why are they closed it’s not a holiday? There has to be one that’s open. Also a lot of community organisations and services have their own mini food banks too or a lot of churches have mini food banks and also hot lunches usually they do this a few times a week. There’s also emergency resources you should be able to tap into not sure what your area is but if it’s first world governments usually want to keep people housed and fed and have services.
Other useful things that may be of interest is furniture banks if you need any furniture, churches usually have clothing too, clothing banks, there’s rent to income places you could rent that are 30% of your income. There’s usually some volunteer stuff that gives gift cards to grocery stores they post to community organisations. Try looking into community outreach stuff.
If you need other resources lmk I’m pretty good at finding and referring people to these things.