Not everyone is good at everything. No matter how hard they try, their brains just aren't wired for it. It is exceedingly difficult.
If this is you and cooking, just work around it.
Some people are bad at math. They hire accountants. Some people are bad at physics. They take their cars to a mechanic. Some people are bad at cleaning. They hire a maid. Some people are bad at programming. They take their computers in to be fixed.
See where I'm going with this?
I happen to be really good in the kitchen, and can't understand people who aren't... but that DOESN'T MEAN EVERYONE should be able to cook!!! Just like not everyone can do their own taxes (or pay bills on time) or keep a Martha Stewart home, or hack a computer, or fix their own car! Just because something is easy for ME, doesn't mean anyone can do it.
((For the record I'm the person with an accountant, computer hacker, and WANTS a maid. Those 3 things do NOT make sense to me.))
If you really want to learn, don't follow directions. Go to www.foodnetwork.com and watch their How To videos. Everything from how to pick out produce, to how to chop it, to how to cook _______. Follow THOSE directions. See how things are supposed to be held, what they're supposed to look like.
But if it's not a "learn" thing... if it's a "I'm sorry, but my brain doesn't accept that kind of information." thing...
Work around it.
There are places that make 'freezer meals' where everything is assembled in shop, and you just heat them up. Trader Joes (if there are any near you) has about 30 options for 'cooking out of a bag by heating up what's inside' meals. You've already found box-meals (although those tend to be pretty awful for you, they ARE food). Sammies are things anyone can make who has any kind of gross motor control. It's just stacking. Trade with a friend who cooks well for things you do well (cleaning, car repairs, whatever). Heck, make cooking your husband's job.
If you're terrible at cooking... that's OKAY. Not everyone can hack a computer, fix their car, rewire their house, or whatever.