People suggest cook book as a start, however be careful that complicated receipts are tedious and might remove the joy of cooking.

Most actually good receipts are also simple - keep that in mind.

My two cents will be to find simple stuff and start from it. You will discover that most cooking consists of

1. "Fry onions / other vegetables" Add meat.
2. On the side boil some granes or potate, mix in. 2.5. Or smash everything together into the oven and wait.

It is possible to have a nice home cooked meal without the major struggle if you learn simple receipts. And then you can start buying food based on your knowledge of cooking - keep the stash of universal cooking supplies is as important as the cooking itself.