Health: How old I am isn’t relevant. I can guarantee, though, that there is no Gemara in Pesachim that says that Eretz Yisrael will be the whole world and I am pretty sure (can’t quite guarantee it, though) that there is no such Gemara in Sotah.
It’s not about being haughty or arrogant. You claimed a Gemara existed. You didn’t provide a citation or a Daf. There is no way to prove a negative other than showing you the entire Masechta and showing that no such Gemara exists. It is unfortunate, but there is really no way to call you out for citing a fake Gemara without seeming a little bit arrogant. There is just no way to do it.