I reckon there must be something else wrong, teething for example. My ds2 is lots older (15 months) but out of the blue did this for 2 weeks.
He had been self settling,if not sleeping through beforehand (would sometimes wake for a bottle,but settle again easily).
At the time it seemed like a change in his behaviour ,rather than a temporary blip, went on for 2 weeks (seemed longer). We had to pat and shush or cuddle to sleep, we used calpol/ibuprofen etc.
Towards the end I did actually try controlled crying, tbh I did it for one night, not even properly (I went in to pat and shush after an hour).
I was at the end of my tether, but controlled crying did not work. Shortly after he went back to his self settling ways and I felt shit about leaving him to cry that night.
If your dc has previously been self settling,or sleeping well then ime there is something wrong.
I do know what you mean, it's hard when they just scream and won't even go to sleep on you. But I don't think cc is the answer tbh, it's only worked for me once in a very specific situation (was more cio).