In my first marriage decisions were "shared," but, um, the real responsibility was a little one-sided...

Now I'm pretty much in the dark. I don't necessarily like it that way, but I wasn't raised in a family where there was significant investment income, never had enough to invest when I was on my own or in my first marriage, and I came into my current relationship with exactly zero understanding of that whole process. I've tried to learn some, but I'm really overwhelmed by it, and I also admit to being lazy about not learning things I don't currently need to.