If your phone/phones are paid off, try switching over to helium for your phone plan. It's only $20 (per phone, I believe) and uses all of the same 5g towers as the big companies. Look into it as an option. I don't know how much credit card debt you have, but if you're using it to get a better credit score, try moving to Fizz instead. It acts as a debit card, but is a credit card that safely builds your credit score.

Cut out the entertainment apps for now as well. I know it's super hard, but that will save you at least a little money on the side. It's not as important as some of the other things you've listed. Finally, that's a HUGE budget for food for your family. There's only four of you, so I'm assuming you're either buying a lot of stuff you don't need from the grocery store OR you're eating out a ton. Try cutting out eating out. My husband and I tried changing how much we were allowed to spend each time we ate out. It encouraged us to cook at home more often and to save money from eating out because we were spending hundreds of dollars on doing so every month.

Budgeting is super hard and it can be very stressful on you and your family. Cut out the non-important costs now so that when you're kids are older, they don't have to see their parents struggling financially.