If you aren't already doing so, buy your kids' and your husband's clothing at thrift stores like Goodwill or the Salvation Army (unless he has to wear suits to work). Look at your menus and cook your own food from scratch and eliminate most meats. A beans and rice combination are a good protein-starch balance, and a little sausage or ham can be added for flavor. Use leftovers wisely. If you can't look at another mashed potato, make potato cakes out of it (they are delicious). If you live in an apartment, container garden some veggies like lettuce and tomatoes.
It is cheaper to pay a subscription fee to something like Netflix or Amazon Prime for entertainment than to go to the movies or have cable TV. Libraries and city parks are great for entertainment, but sometime you just have to have something at home on TV.
One other thing, don't be ashamed to apply for a rent subsidy or other subsidized housing which is based on your income (if you don't already own your own home). This could cut off several hundred a month from your living expenses.
If you are already doing all this, please take heart. Sometimes you just have to wait it out, but relief is usually around the corner. I know you are discouraged and all the Pollyana platitudes in the world aren't going to help. I went through a 5-year drought like this when I was a single parent. Interest rates were around 15% at the time, and rent was going sky high, so I qualified for 8% bond money and bought a house in an unstable neighborhood. Sometimes I worked two jobs just to make ends meet, and once I went six months without a day off. All this was to the detriment of my teenage children who got out of control. I regret doing that. By the time I got back on my feet, the boys were grown and off to school.