Struggling with toddler sleep

[greysalm]

Baby is a few weeks short of 2yo. Up until the end of feb he had been sleeping well, we put in cot at bedtime and he rolled around for awhile and put himself to sleep.

End of feb he started with a week of early wakes, the second week he started screaming if you didn’t stay beside cot till he was asleep and was taking longer to get down, about 20mins for nap and 40 at bedtime.

About a week into this he climbed out of cot so we moved him to floor bed. Since this he skips his nap most days, when he does he’s asleep in about 15mins at bedtime, if he doesn’t it takes 40mins to an hour.

He needs me to lie with him still for any sleep or he screams. He’s also waking now in the night and earlier in the morning.

I can’t really do cio as my 8mo is in the next room and he would def wake him.

Just not sure what went wrong or how to fix it- any suggestions welcome.

Just feel like crying as I get little time to myself and I’ve spent the last hour and a half lying in the dark with him.