Welcome!
Moana is cute!
I have never had a dog with separation anxiety, however I know people who use CBD oil to calm them, and there is another product called Pet Well-being Calming Care and Stress Gold that I know a couple people use for the separation anxiety.
Also, have you tried getting her a Kong and put peanut butter and treats in it and freeze it, then give it to her right before you leave??
Also is she crate trained?? When they are crate trained, they know the crate is a ‘safe space for them’ so it could also help for you to put her in her crate a few times a day to get her used to it and it helps keep her by herself, when you have to leave, she feels better.
When she cries to get your attention, ignore her and don’t talk to her or come into her area(that will basically teach her to cry when she wants you and she will learn to do that to get you to coke to her), maybe block part of the house off with a baby gate so she can’t follow you everywhere, but so you can practice not being in the same room to get her used to being without you.