Hi, I have a nearly 16 month old. He usually falls asleep on me or my partner before his nap and night time then we put him down in hit cot around 19:30, he wakes around 22:00 ish crying to come into bed with us. This has usually worked and hasn’t been a problem. But the last week has been pure hell getting him down, taking us hours to get him to sleep day or night. We haven’t ever trained him to sleep on his own, he’s always been a bit wild and too awake. We have tried to leave him in hit cot but he jumps around for hours then gets upset. I’m at my wits end although this is all my fault. Any suggestions? Will Ferber method work? Please help 🙏🏼