It's an addiction isn't it? Validating yourself through your followers. This is why people with mental health issues should steer clear of Instagram. It gives them the validation they so desperately crave, that people like them, that they are interesting.
She needs to listen to her therapist and stay off insta. No you can't give 100% everywhere. Listen even to yourself heather, all your previous posts about not being able to give your all to three kids and pets, give yourself a break. Get better. Get to the point where you don't need a like to give you a boost. Find that Boost from your children's laughter and keep it to yourself, 30k random people don't need to see it before you can take joy from it. Enjoy life in the moment and not behind the phone!