I don’t know really, that’s a fairly individual experience that you’re quoting. Really, the feeling that you can’t speak to someone is part of how insular mental health issues sometimes can be. The idea of not telling people is why so many have died from it, and I speak as someone who has suicidal feelings every single week. Lots of people absolutely will experience what you did but the quote at the end isn’t a healthy way to view your problems and other people’s perceptions of them.
The fact that she’s speaking about this now rather than when it was happening suggests that she absolutely went through a long period of telling few if anybody about it. I guess I don’t fully understand why what she’s doing to seek attention would be viewed as a good thing by her, given that much of it has been extremely negative. The British have turned against her, she’s fighting the monarchy. Where’s the benefit?