I have been I’ve 40,000 feet in a Lear jet and seen the curvature. I have been on a ship and seen other ships approaching from over the horizon. I have traveled by ship to the Southern Hemisphere and witnessed the southern cross (opposite the North Star) and seen the stars traverse about that axis opposite the North Star. I have looked at other planets, stars, and the sun through an observatory telescope. I have seen the moon and the sun, and watched the moon phases, and eclipses.
If you can’t go outside and observe even the simplest of obvious bits of evidence and come to the conclusion that the earth is round, then you seriously have a screw loose.