Having done a math PHD and now working as a programmer I find math proofs and programming semi-similar. Though I think programming is less "relaxing." In mathematics if you have an argument that works and isn't insanely complicated you can call yourself victorious. You can look for a simpler method if you want but there is really no imperative to do so. In programming there is almost always a better way to solve a given problem and the differences in speed matter alot.
High barrier to entry. I expect that at my current skill level I'd get caught pick-pocketing the first time I tried it, and that would impact my ability to try it a second time.
It seems like you just really like programming.
There's a seemingly limitless amount of skills that fit these criteria:
I disagree with the statement that electronics "is basically still programming". There are similarities between the two, but also significant differences; particularly if you consider electronics outside of the digital realm.
I also do not understand why you question whether math is "useful in the real world". I imagine that anyone involved in engineering, science, finance, artificial intelligence, marketing or a great many other "real world" occupations would vouch for the usefulness of mathematics.
Social skills. If you have no skills at all, simply going to omegle and chatting with strangers can be a first step.
If you want to get further you can focus on dating, coaching, negotiating or networking.
Studying stuff using spaced repetition systems, e.g. Duolingo. (Though it may lack "useful in the real world" depending on, among other things, what exactly you're learning.)
Music. It's pretty much all math. Every part of it. When you try to learn a riff, and you play it, and it sounds like you think it should, interesting things happen.
That is not the same. A complex set of equations are not required to calculate how to make an object to throw at people, nor is it required to make a glove or to figure out where to place your hands to catch the ball, but generating resonance at a given volume and frequency is a very hard thing to do. Stradivari may not have been a great mathematician, but he still had to carefully measure, and set to very exacting specifications each one of his instruments. He had to follow the calculations even if he did not know those calculations. In the time of ancient Greece, before those calculations were completed, it did require a mathematician to devise a musical instrument more complex than a drum. This is why many cultures never got past the stage of drums and horns before the more complex instruments were imported from Europe. These equations can be used by those unfamiliar with them, but they can't be created without someone learning those equations in the first place in the same sense that computer software cannot be created without engineering.
Programming is quite a remarkable activity: