It took a couple of months for our DD to go back to self settling after a 10 day holiday where she shared our bed. What did it for us was getting her out of the cot and into a bed. I settled her in the bed and often stayed till she was asleep, then left.
OMG a couple of months... Here I was hoping for a couple of weeks. So did you go to a big girl bed? Or did you put her to sleep in your bed?