I need sleep advice. I can't get him to sleep anymore. He recently mes…

I need sleep advice. I can't get him to sleep anymore. He recently messed up his routine. It's torture for me to make him go to bed, he fights against it, gets out of bed, if he lies down he twitches, climbs on the headboard, in general it's very difficult to put him to sleep, we try until 23:00-00:00, at this time he falls asleep. Can you tell me how to restore the routine? Before, I never had trouble putting him to sleep, just took him to bed and he fell asleep next to me, but now I'm rocking, cuddling, nothing he wants.