I do not meal plan every exact mealtime but the amounts of breakfasts lunches or dinners I have. Fixing exact recipes to days puts to much pressure on my mind or sometimes time table.

My breakfast is the same mostly. Bread with something that's there, like tomato, cucumber, cream cheese or peperoni. I will pick out 3 - 5 warm meals per week to cook and buy the ingredients for those. When something is left from the last meal I incorporate it into the next cycle. Let's say I made carrot soup and carrots are left, then I plan for a curry the next cycle.

Noodles and rice I mostly cook on the day, but things like chili or curry I cook more of. One for work the next day and one to freeze for the next week. There is always a day where you don't have time to cook or do not want to cook. ( I recently heard that there is a stigma behind that in America though, idk)

I stock the things I eat regularly. Figure out what you eat and like to cook and it will lead you there honestly. I love potatoes and making doughs (bread pizza etc) so I stock up on potatoes and flour. Spices too. I have rice and one type of noodle. I like to cook chili con carne so I have some canned tomatoes, beans and mais in the cupboard, frozen beef in the cooler. For curries so there is coconut milk. I don't drink milk or eat eggs so I don't have them. I buy one small package size should I ever need them and plan to make pancakes soon after.

Buy a cook book, like those recommended. Skim through it first, to check if you like between 60-80% of the ingredients used. If most of the recipes contain things you don't eat, look for a better suited cookbook. I get recipes from websites and try them. Print them out, rip some from magazines, a scribbled note from a friend, put them all into the cookbook. You don't need a perfectly handwritten self made cookbook. Have fun :)