Did your papillion puppy have a hard time being home alone?

Hello,
So I have a 5 month old papillion puppy that I got when she was 3 months old. She is so perfect but she has such a hard time being left alone. I feel like I have tried everything and I ofc started slow and I have never been gone more then two hours since I got her. I just feel like she is supposed to be a bit more relaxed at 5 months being home alone for short time.
If she is left alone in the apartment she barks a lot!
If she is left alone in playpen she whines, tries to escape and goes crazy! (i'm never leaving her there alone again, because of safety issues)
If she is left alone in crate she bites, whines and scratches the crate, however it is deffo the most safe space for her and she does rest in between. I'm mostly worried about her teeth when she bites the crate. She also sleeps in crate during nights and it's no problem.

I just quit my job since I can't see how she is supposed to be left alone in the house for 6-7 hours any time soon while i'm at work and I can't keep bringing her to work. I'm now looking for a job that has shifts on the opposite times where my boyfriend is working.

Can someone please tell me this gets better??? 😞 I would also love to know how your papillion puppy was while being left home alone and if you have any tips and tricks? I love her so much, but I would love to go to the store without being so nervous and watching her through the camera the whole time.