I had missed the detail that this had only been a very short time, so she may have been reluctant to video chat. But, if you say ‘she’ was sending you very intimate pictures, then I’d say their being camera shy was not the case here. I still think this was a catfish. She may not have been a ‘she’. You have no way of knowing who this person is without having heard their voice or their face live. You don’t know if this person was wanting an emotional relationship from afar or was after money or something else from you.

How did they happen to see your post on reddit?

This all happened in a very short time frame. I agree that trying to connect with people who you can get to know in-person is a better way, and that online is the Wild West, which is not healthy for someone struggling with interpersonal connections. Find legitimate, kind others and take it slow. Therapy and focus on how you feel and act on relationships is important.