So frustrated and feeling very depressed

Sorry you’re feeling this way. If it’s any consolation, I’m in the same boat. Husband works 7-7 sometimes 8 sometimes 9.

What I’ve found works wonderfully is getting out of the house every day, even for 30 minutes. Get used to going out with baby, prep their bottle or breastfeeding supplies, put a comfy outfit on, do your skincare, leave the house. Go sit in a cafe or get a take away drink and have a little walk.
By the time you come home, you can resume the baby’s routine, and even feel a bit lighter and fresher because of the walk. Trust me, it does wonders for your mental health.
Think of it as your routine and your time for yourself, even with baby being with you.
It’s super hard to feel supported when they’re working so much, but try your best to remember that it’s just a phase. If you keep feeling it too much you will spiral into a hole you don’t want to be in.
Also, force yourself to nap when baby is napping. It also makes you feel less like you want to sleep and not wake

I’m so sorry your having a hard time

I felt the same way post partum. Suffered from some bad ppd. You should really reach out to a therapist so you have someone to talk to about these things. This app helps and all but a therapist works wonders! You're not alone in this! Keep going!