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Mine is the same. After 1-2 am he wakes up every 90 minutes and cries if I don’t have him with me :(
Make sure they can fall asleep in their crib initially at 7pm (and not in your arms) would be step 1… basically you need to sleep train :) Baby has got used to you giving them something else, and won’t settle without it. They can learn new things though as long as you are consistent with your efforts.
I unfortunately don't have any tips, but mine is exactly the same! I can fight him but it can last 2 hours!!