Any benefits possible

I earn a low wage - take home around €2,400. We have a mortgage and this seems to exclude us from any help with CPAS. Husband is self employed officially but reality is he has no income as mentally ill and unable to work. With everything going up, I am trying to find out if I am entitled to any benefits. He cannot claim “chômage” as has his own sprl (though I repeat NO income and hasn’t had any for years) . We get allocation familiale which is helpful. Just need some advice please as things are not sustainable at all and I am becoming increasingly desperate.