I don't have all the answers and i will not pretend to have, i just gonna say what i would like to hear if i was in your situation now.
You're definitively right Brittany, life is hard, some days is difficult to get up the bed,
and it's even harder to try to stay productive. But it's ok! Don't push yourself too much, give time to things to solve, do what you really want to do and don't feel ashamed for it!
Yes, it is all in our heads, so what? A person can only see the world trough their own lens, no one should expect something else. Everything is subjective. Don't try to be perfect, just be yourself.
It's not whining! What you feel is important, if you're sad, allow yourself to be sad! There's no shame in this. It's ok to talk about it!
When i first seen your art in this post, i felt something... like if i could understand a little about you by just looking at your paintings in this post. You art is already very emotional, and this is not something everyone can do ( I can't )!
I recomend you watching some of Adam Duff's videos, he talk about this sort of thing...
I hope this can help you somehow.