There are some things that people just get a lot better at with life experience, like managing your food. When I was younger my fridge was full of moldy takeout containers. Now I use a meal planning app that generates a shopping list for me (plus other staples that we go through like hand fruit, bread, milk etc.) My grocery bill for home cooked breakfast, lunch and dinner 5-6 days a week for a family of 4 is about $200 a week. I think it's kind of high, but we mostly eat fresh meat, veggies, and fruit, not much grain or processed food, and we waste almost no food. We do spend on average an hour a day preparing lunch and dinner, but that's usually family time where we're all in the kitchen talking. One of my favorite feelings is after putting everything away from a grocery shopping trip and seeing my kitchen and refrigerator full of healthy food that I know will nourish my family for the upcoming week.

edit: App I use is eMeals, I tried several and this is my favorite so far, we are on the Paleo plan right now but they have maybe 8 or 10 different plans and you can switch pretty much at will. If anyone else has one they love please let me know!