Bless your poor soul. PLEASE let me know what works for you as I'm currently going thru almost the same thing.
As I write, my 2 yr old has been yelling behind his baby gate for the past hour after I reached my breaking point, couldn't take it any longer and told him he had to figure out how to nap and fall asleep in his bed on his own. He had a bath/story/bedtime routine for when he was in his crib, but he'd never been good at going down and it still took him a good 10-20 minutes of rolling around/rearranging his blanket and pillow/crying to fall asleep, even when he wanted to go to bed. Of course, for the past 3 weeks in his new toddler bed, the old routine doesn't work, and my husband is majorly flipping out and doing his own screaming if I let our son cry, so I've ended up having to sit or lie with our son on his floor to get him to fall asleep (otherwise I have 2 persons flipping out on me at night when I'm exhausted and sleep deprived and still have my own work to do), then our son will wake up between 2-5am and scream for me behind the baby gate (that is up to actually keep the dog out of the room), until I pick our son up and put him in bed with us to fall back asleep (again, otherwise the hubby flips out).
OMG, I'm so ashamed to admit sleeping has come to this after all the posts I've written about staying strong. I should say that I had to sleep train AND wean my son when he was 15 mos. by just telling him it was time and cutting him off and doing the CIO. I had to do it because of a business trip, and thankfully it only took 3 days and in the end, he seemed happier and more independent for it. Sorry to those opposed to CIO, but gentler methods only seemed to make my son worse. Cutting him off this time can't work because of the hubby situation.
Ok, I think he's finally asleep now (1 1/2 hours later--yes, I know it's only a nap...) So, deep breath and since I just can't take it any longer, here's what I'm going to do:
I'm just going to talk to my son this evening, tell him he's a big boy and needs to sleep in his boy bed now, on his own, because that's what big boys do. We'll do his normal bath/story bedtime routine, but if he gets out of his room, I'm just going to pick him up, give him a quick kiss on the cheek without letting him look at me, put him back in bed, and say, "I love you. It's time for bed." Then I'm going to leave...and keep doing it 20 times until my son gets it. I really can't let him stand at the baby gate to cry, because he'll pull out toys and start throwing them at the dog in the hall, plus the hubby will go nuts too. Plus, the kiddo JUST figured out how to drag a toy box to the gate to climb up--ok, that was pretty brilliant of him :-) Oh well. Wish me luck.
I'll let you know in a few days if it helps. Christmas preparations be ____@____.com^*d. All I want for Christmas is some sleep!
I'm truly thinking of you and hope you find something that works too. Let me know.