But children means you lose your DINK status and are raked over the coals by design. Unless you're rich, then your babies won't he conscripted in the coming water wars.
Its more like already owning the same vehicle as a tow truck, but when you try to install the towing equipment on it you realize that there's no way to mount it because the manufacturer didn't find it profitable.
One pull up is tough. That's your entire bodyweight in one pull exercise. Are you in a place where you would bench your entire bodyweight? I know it's apples and oranges, but im trying to say lead up to it with some lighter pull-downs that you can do more of. It will at least be more productive, leading to some positive mental gains to boot.
Don't forget about the Alamo.