Voltage stepping and current reduction
Check online and on YouTube, you can find dozens of articles and videos concerning Ionocraft, also known as Lifters, all of which utilize what may be similar thrust production as the drone you are contemplating. All use high voltage, and ALL require extreme safety measures. The actual thrust factor to all of them, so far, is quite small, so the craft themselves need to be very light. I'm not too comfortable with your idea of using electricity from your home's standard AC outlet, due to possible high-voltage kick-back into your home's wiring, which would definitely fry it or any T.V.'s, computers, stereos, etc. At least equip your experimental wiring with safety inductors or diodes to try to keep that from happening. Instead, I would highly recommend a dedicated, separate voltage supply source bought from an electronics supply shop. Not cheap, but hey,  rewiring your entire house and electronic plug-in toys would be far far more expensive. Also remember that any high voltage values which would actually produce thrust WILL MOST DEFINITELY kill you or at least make your eyes fall out of their sockets! SAFETY FIRST, read up on lethal voltage and amperage values which can be found all over the internet. Here's a good short article on lethal voltages: https://www.physics.ohio-state.edu/~p616/safety/fatal_current.html