Hi. :) So sorry you're struggling! If you don't mind, I have a few reccommendations...
Have you taken any B vitamin supplements? A lack of B vitamins will leave you feeling tired, irritated, depressed and jumpy at sounds or light sensitive. It can also cause insomnia with fatigue... Maybe you need D vitamins... More calcium. A lack of these vitamins cause depression.
Maybe write the baby or read it a story when you are feeling frustrated. Studies show t hey can hear sounds and do respond. I saw a suggestion on Pinterest to get the baby an email and start emailing songs, stories and pictures, along with a blog and keep doing this until its 18th birthday... Btw, Pinterst has great baby stiff ideas for decorating, seeing/crafts, etc... Great way to pass the time! :)
Try music therapy (think ckassical), and what I REALLY suggest along with the others, is to read your bible. Start in the book of Psalms. You can go online and read it, too. God knows just what we need and can handle... I will be praying for you! Hugs!
Im going thru the same thing :(