Mom, how did you teach your children to sleep in their cribs? When the…

Mom, how did you teach your children to sleep in their cribs? When there was regression of sleep, I got lazy and took the son to our bed ?‍♀️ Now he can't sleep in his crib, an outburst starts, gets up and doesn't lie down in it. It turns out that if I put him when he sleeps, then he will sleep until 12 o'clock, wakes up and only falls asleep in ours, otherwise, the outings begin. We have already even attached his crib to ours, as soon as I put him in it, he won't fall asleep for any reason, maybe an hour or two, but as soon as I put him on our side, he immediately falls asleep.