Sending Nudes to Natalie

I'm 22, by the way, and this girl's by far out of all the past relationships, I'm most crazy about her. But then again, don't trust her at all because she's proven to not be trustworthy. Especially handling social media. But like I said, she's hot, so she posts a lot and I'm kind of uncomfortable with some things being posted. I understand it's the new age of social media and influencers, but she says my opinion is stupid and that's been a real problem for us in the past. Would really like some advice, especially on how to handle the social media part. This just screams red flags, immaturity all over, right? Like left and right.