Good luck OP, it's hard to break a cycle! We do love a good take away 😁
Have a look at some good recipes sites and see what you fancy making. Or a good book if you've not really cooked before. You can't beat Delia's How to Cook for starting out - she says what basic equipment to have also.
BBC good food is great and easy to follow for classic homecooking.
Recipetineats.com is my Go To! for anything Asian (plenty of other recipes on there too including easy breads, pizza, inyernational etc) I've taught myself to make all out takeaway favorites at home with surprising few ingredients!
My store cupboard always has...
Dried herbs and spices. (Pick them up as and when you chose a recipe)
GOOD stock cubes, chicken, veg and beef.
Tomato puree/tinned toms/passat
Onions, Garlic, spuds, carrots,celery
Mustards, dijon, powder
Good oils, veg and olive BUTTER!!!
Vinegars...
Cream
Dark soy
Light soy
Oyster sauce
Mirin
Rice vinegar
White pepper
Honey
Rice(s)
Pasta(s)
Noodles(s) 😁
Lentils/pulses (I prefare dried over tins 🤷)
All flours, including. Cornflour, yeast
Baking powder/bicarb.
Salt, pepper, brown sugar
Anything else will depend on your set up and equipment, time and what you fancy making.
As long as you've a good knife and peeler you're good to go!
But I would never be without my decent, metal handled, deep non stick frying pan with lid. The slowcooker and a nutri bullet! www.recipetineats.com/