Fix one thing yourself and suddenly every broken thing looks less like a disaster and more like a puzzle.

Helplessness around objects is learned, usually from never having opened one. A single successful repair breaks the assumption that broken things belong to specialists, and after that a fault reads as a sequence of causes rather than a wall. Nothing about you changed except the evidence you now have about yourself.

Choose the smallest broken thing in the house and look up how it comes apart. A hinge, a handle, a cable, a bike brake. Give it an hour, and accept that the first one may go badly.