Husband has a learning disorder?

I’ve been with my husband for 15 years since we were 18. I’ve always thought of him as smart even though it’s always been clear he’s just not good at certain things.. but since having my daughter 3 years ago our marriage has really fallen apart for a bunch of reasons one of which is what seems like a learning disability which makes him really hard to live with. And when it comes to taking care of our daughter, he still acts like he doesn’t know what to do about things that have been the same for 3 years now. He has trouble learning basic things around the house, safe driving skills, etc and it affects all of us as a family and it stresses me out so much to have to keep telling him the same things over and over and I feel like I’ve lost a lot of respect for him. I guess I’m just wondering if he really does have a “learning disability” or is on the spectrum if getting an official diagnosis would really benefit us in any way or would just be a waste of time and money. Wondering if anyone has any input? I’m not sure there’s actual treatment that could help at this point

And just to add, some other things I’ve noticed that make me wonder if he has an actual disorder of some kind is he’s clumsy, has trouble with spatial awareness like knowing what will fit where, direction, knowing how to drive back from somewhere or still not knowing the basics of a place that hasn’t changed his whole life, he’s extremely disorganized and when he’s in charge of something he’ll scatter like items all over the place instead of keeping them together, he lacks common sense often.. I feel like he’s a child and when I don’t monitor him (which I usually don’t) I end up regretting not putting in the effort to see what’s he’s doing because he ends up ruining things and has to redo things or spends all day doing something that should have taken an hour or 2. I don’t have family.. it’s just me and him and I feel like I’m about to lose it and just get a divorce so I can have peace in my life. I’m by no means perfect but he’s self admittedly selfish and has anger issues. Sorry for the rant