legacy

Hi all, I recently made the major mistake of drilling into my ceiling at the wrong place Now, there is a gaping hole there and I have absolutely no idea how to recover from the faux pas. One of the solution that I have is... $9.90 epoxy sold at Shell. Seems to be easy enough. Simlpy mix, and patch... Then paint over the patched hole. Any better suggestions?

no expert here, but did up my lighting and heater recently lighting - 40w wires heater - 70w wires that is, if i do remember correctly on this