Anyone sleep trained at 10 months?

Hello, my son will be 10 months in a week. He’s always napped well but night sleep has been a struggle. He did well 7-9 months and this past month has been all over the place. The last 3 nights have been VERY hard and I’m exhausted. He still sleeps with a pacifier. The last 3 nights I’ve gotten up to put it back like 300 times (exaggerating but it feels this way.) Has anyone else gone through this? Any advice?? Help?? TIA