My 1 Yr 7 Month Mini Aussie Is Driving Me Nuts

by Hester

My lovely, jumpy energetic Luna is driving me insane. She is testing all the boundaries, whines, sometimes even growls at the kids, chews on things she shouldn't be chewing on, peeing and pooping wherever SHE wants outside (we had trained her to go into a specific area) etc.
She gets walked and spends most of that time off leash, while I train her. (Sit, stay, heel etc basic commands)

We did get a new baby in the house 2 months ago, could it be that? When I interact with the baby, she does stick her face in there every time. She is very gentle towards the baby though. Licks him if he cries and if she's not too excited, she won't step on him :).

One other thing that she does is peeing on the floor when my husband gives her attention. She also does it when in trouble, but now also when he just pets her. She only does that with him...

Any ideas how to fix this? Is she bored? Jealous? just a teenager and is it a phase?

I have added two pictures, one as baby, one now, but it's a bit blurry.