4 month sleep regression

Lindsay • Mommy to ECA 💕 + baby girl coming June 2019.
My baby girl is currently hitting the 4 month sleep regression with so much vigor, I feel like I'm losing my $#it/mind every second of every night and every nap. 
She screams when we put her down. She screams in our arms. She will only sleep for more that 30 mins at night if she is in bed next to me with my boob in her mouth. Napping during the day is just as much a struggle. We're into week 2.5 of this (she's 4 months 10 days) and I am completely out of my element. 
Steps I'm currently taking:
White noise
Crib replaced her bassinet
Nighttime routine in effect
All the books say put her down drowsy but not asleep. Don't nurse her to sleep. Try not to use a paci if you don't have to. 
Trying to put her down without nursing. Trying to put her down awake. Trouble is she is never calm enough to go down. She just screams. 
Any other moms out there in the same boat can make me feel less alone?