I had the same kind of breakdown a few weeks ago, that he should be going to sleep on his own in his cot
Ds is 19 months now.
He's always been breastfed to sleep til 14 months, being first born, always been cuddled to sleep.
Went through the 18 month Regression so started with the controlled crying. Did it for about a week, I hated seeing him so upset when all he wanted was a cuddle.
Towards the end of the week. When he woke at 1am, we would ignore him, and shush him from our bedroom, he soon got the message, and went back to sleep on his own.
He's been sleeping through now again for the last 10 days, still goes to sleep in our bed with a cuddle then we move to cot, I honestly don't mind that, as long as he settles and sleeps through.
I've taken the attitude to just relax about this.
1 year old is very young still, babies / toddlers aren't forever going to want cuddles to sleep.
One day In a blink of an eye, they will say no thanks mum, I'll sleep in my bed, and that'll break out hearts.