It took me a month to break my son of cosleeping but I cut out naps for 2 weeks and I gave him one of my pillows that smelt like me for him to sleep with. Also get in the crib with baby when they wake up so they get use to their own bed

I just moved my son to his bassinet from my bed and he never really complained. we've Co slept off and on even up to now. he slept with me last night but most nights he sleeps in his bed.

I don't know if it actually works because I haven't tried it, but there's a mom hack to fill a fabric glove with beans and lay it across your baby's back or belly. feels like a real hand and might help.