Unfortunately for us, no one has ever achieved break-even fusion even in the biggest facilities. Maybe one day!

That being said, you can build DIY fusion devices (usually fusors) at home, but they usually cost a few thousands of dollars and produce something like a milliwatt of fusion energy for every kilowatt input, so no net output. It's something I eventually want to do, but just for fusion's sake, as no one will produce any usable electricity with a fusor.