I have been looking around to figure out how superconductors are made. What ways are there to create a superconductor that don't involve a coolant like liquid nitrogen? Is it possible to cause a material to become a superconductor by running electric current through it? How practical is it to create a superconductor using any of these methods?
The only way is to figure out some tricky atom structure which will work at higher temperatures. Check out existing examples:
You (probably) can't make a superconductor by passing current through non-superconductor, but I don't say it's impossible. From the IT side, if one would be able to create precise model for superconductivity in any atom structure and then bruteforce different structures, then it might be possible to invent something new. But this is insanely large piece of work.