Don't remember what sleep feels like

[AnnieS2511]

I don't know how to change this terrible habit we got into.. my LO is 5 months old and has always been a terrible sleeper. When she was 1-2 months she would sleep in her crib at night from 8:30 to 1:00 a.m. and wake up every 2 hours to feed after that, which I felt was pretty normal for that age. After Christmas her sleep just went completely out the window.. she started sleeping 8:30 to 10:00 or 11:00 instead of 1:00 and would wake up every hour, sometimes every 30-45 mins... I would take her to feed in the arm chair and we would both fall asleep due to exhaustion before I had a chance to put her down (I know, its not safe co sleeping!! I really didn't do it on purpose and could not help it...)
Fast forward a few months and she will NOT sleep anywhere but on me or my husband, even for naps.... When we try to put her down she will wake up instantly and start shaking and screaming until she is picked up again.. I really don't know what to do anymore. I'd love to teach her how to self soothe, fall asleep independently, etc., but most of all I just want her to go back to sleeping in her crib!
Side note** we tried co sleeping in our bed and she absolutely hated it.. screamed the whole time

Sorry this post is so long!! If anyone has any advice I would loveeeee to hear it!

Thank you in advance from a very sleepy mama

Oh that's really tough If she isn't rolling yet, it might be an idea to try swaddling. You won't be able to keep it up once she's rolling, but it might be enough to break the association of sleeping on you. It won't be long until you need to wean her off it again though.

Does she have 3 naps?!
Does she get an hour of fresh air a day?
BF or Bottle feed?
Bathtime routine?

@FeeFee832 yes she has at least three naps a day, though these are never longer than 40 mins max and always either on me or in her stroller.. we live in Italy so plenty of fresh air - at least 3 hours a day... She is EBF and we haven't introduced solids yet as we are waiting for the 6 month mark.. and bed time routine is usually dim lights in front room around 6; 7ish bath time, then massage, pjs, say good night to dad and dogs, book, boobies, bed...

I wonder if 7 might be a bit late for her to be getting in the bath. If she gets over tired, you'll be fighting cortisol all night. To the best of my knowledge, the biological norm is a 7pm bed time everywhere in the world except Spain (Franco moved the time line to match Berlin). So maybe it's worth creeping bath time forward over the next week until your getting her to sleep for 7?

Sounds like you're doing the right things! Stick with it!
I'm struggling too with sleep and these are the main things I've been told to work on!