Re: approaching 50
I had to teach myself InDesign to create formatted text for publishing a gift book at Lulu. As with most software, it does about six hundred things I will probably never need, but what I do need, it does pretty well.
I still had to go through and "tweak" kerning and such to make the pages look nice.
Sad to say, some of my software is used primarily to edit and manipulate presentations and designs that other, more expert users have cooked up.