A popular question on askreddit is “Would you accept immortality if it meant you were sent back 2,000 years into the past” and so many people go “Yeah, of course. I would use my knowledge of the future to gain respect and be treated as a god.”
listen. listen. you’re not doing shit. you’re gonna go to Ancient Rome and get anyone to take you seriously? really? you’ve got fucking nothing. you definitely don’t speak fluent latin. you’ve got a weird ass accent and weird clothes. “ooh here’s a crude map of the world?” what the fuck is Augustus gonna do with the knowledge of 7 continents? They’ve got fucking cartographers. They’ve got ships. you’re not gonna get a fucking audience with anyone.
ooh but what about technology? you’re gonna hold up your iphone and go“Behold! Electricity!” ? you don’t know how that fucking works. you think you can recreate anything? you’re the fucking crazy homeless barbarian ranting about strange magic and shit. you get no respect.
you’re gonna predict events so people take you seriously? you go “yeah uh stuff is gonna happen in 30 AD” and they don’t know what the hell you’re talking about. they use different calendars. they have no idea what BC and AD is. you don’t know months. they’re gonna ignore you.

Jesus wasn’t crucified until like 30 and 36 AD so presumably the real one would come along.
I would totally take the deal and somehow make my way to Jerusalem just to see what really happened tho. I’d just live in the woods and sleep for decades at a time.
I fully acknowledge my memory for years is shit. I’d go “Man, I gotta warn people about terrible events” and then whoops I fucking missed the Library of Alexandria burning. Ah fuck there goes Mount St Helens.