Yes, she's obviously desperately trying to get to the next level. I think if she could handle another kid, she'd be having another soon as she seems to be floundering for content and keeps going back to the trusty body image, mental health and "you've got this" empowerment posts. I'm sure there will be a loneliness or troll post soon.
I think you're right about how she tends to lift stuff from the popular accounts. She's like a less popular version of Mrs Meldrum - no real idea of what work is, a school mean-girl pretty princess, not the brightest button, ready to sell out her kids for a free box of kids snacks and obviously has a favourite child!
She's also dabbling with the same app that Katie Ellison uses for her story ads to step up her professionalism.
And this constant "I'm a working mum" chat... I am wondering what it is. Channel bum? Gleam? Why? She doesn't really need to work/advertise via her children. It's like she is manically trying to find a niche of being a "working", honest and humble person so she doesn't come across as a typical instamum freeloader.
Just my opinion, but I really think she should take a step back and invest some time into her children rather than keep pursuing insta-fame. Be present, stop living life through a lens. You will survive without the heyhun brigade and constant ego boosting. Live in the real world and you might actually be less lonely and less on edge?
Oh, and for someone who doesn't do fast fashion or ever treat herself, she sure does seem to have a never ending supply of clothes to throw out in her two monthly wardrobe clear outs.