There's not much help out there for you, I'm afraid, anon. The rest of us are all living in the objectively observable reality of the round rock.

May I suggest the TV series How the Universe Works? Even if you can't get what they're saying, the visuals are off the charts, and Mike Rowe's sonorous and mellifluous voice will lull you into a nice peaceful sleep where you can dream the earth is flat and no one will laugh. :)

The flat earth people are just being willfully stupid.

Thanks for proving my point.