Do you have a budget plan?
Nope. My daughter does the budgeting. I do not want to trouble my mind with horrible finances. However, a few tips I can give you. For subsistence, plan your food. Get the basic when you get to the market or the grocery. Garlic, onions, tomatoes. You can sautee just about anything with those ingredients. Sauteed eggs, as in omelet, sauteed fish, sauteed rice, sauteed vegetables or meat. That will stretch the food. And you are healthy. Purchase clothing only when necessary. Check on the less expensive detergents and soap and shampoo and toothpaste. Use natural, too. For cleaning, use vinegar and salt and baking powder. Etcetera. Have fun arguing with your daughter. That is the beauty of life.
if you're both foodies and find it hard to skimp on food, then skimp on non-food expenses, like (as suggested) buying cheaper brands of cleaning materials and toiletries, and maybe on transportation, too, like walking instead of riding a tricycle, and also on electricity and water to lower your bill.