It’s tough, and most of us have been there.
Cooking is a learned skill, not a natural ability type of artwork the shows make it seem. Find what method of learning works for you. For me it was watching YouTube tutorials and printing out the recipes.
Most dishes use many of the same ingredients (garlic, onion, salt, pepper, rice/pasta/potatoes, and a veg) and can be prepared in under and hour after you have it down. The first few times has a learning curve of course.
What’s interesting is when my kids saw me take cooking, really eating well, seriously, they follow suits. My hs age kids will actually cook themselves decent little meals when they home alone, rather than heating up garbage.
Wegmans is a life saver. They have chicken breast/thighs, pork, lamb, etc all in vacuum sealed containers that are easy to thaw in cold water. I recommend keeping some of those in the fridge/freezer for thrown together meals. They also have stir fry sauces, salsas, and pasta sauces that are pretty good. Once you get that down you can graduate to making your own pasta and Mexican sauces.
None of this fixes your weeknight problem. 8:30 is late to start dinner. I agree with the suggestion of cooking on weekends, or having something around that can be reheated.