I have OCD and this reminds me of when I was in high school and I'd watch a ton of videos on people's morning routines. They say "I do ____ to help my anxiety" so I started getting very regimented with my morning routine, too, in an effort to get rid of my anxious thoughts. I didn't even realize I had gotten into these obsessive routines until one day my dad tried to come in my room and talk to me before I was "ready" to go downstairs. I was in the middle of systematically turning on my lights in the "proper order" and I flipped out when I couldn't finish it.
I'm obviously not saying she has OCD, but her doing that kind of thing is a red flag for me. What I've learned over time is that it's never a good idea to mask one behavior with another one. I used to do this thing where I'd have an intrusive thought and start chanting something in my head until I couldn't think about that intrusive thought anymore. Although that works temporarily, it's not dealing with your actual thoughts at all. That's why you're supposed to work through those intrusive thoughts in therapy.
Anna said before that she used to get up early to try and get a certain amount of exercise or steps in, too. I used to do that as well when I was deep in my OCD. Anna also said in her latest YouTube video that she used to think over and over in her head, "I feel so guilty" while she ate, and that she turned that into a so-called affirmation of "I don't feel so guilty." Well, I hate to break it to her, but that's the exact behavior I used to do when I was trying to overpower my intrusive thoughts by thinking other things.
Regardless of whether Anna does or doesn't have OCD, it's really bad to teach people those kind of behaviors. The reason people like me fall into addressing intrusive thoughts with obsessive/compulsive actions is because it DOES work--temporarily--to get over your anxiety. But long-term it's extremely harmful and you need to deal with the real issue head-on.