OK you mentioned that you followed advice to let her cry herself to sleep, I assume that wasn't from this site, as that is a concept strongly opposed by Tracy Hogg & the BW community as it breaks trust.
At 11 months old your lo would have been having separation anxiety at some stage in the last few months & letting her cry to sleep would have just made it harder for you & her.
yous say you have removed the dummy ie she no longer uses it, or that you take it out once she is asleep... if this is the case then it could be a prop & that is what she is looking for to get back to sleep, so you need to wean her off it completely, or teach her to find it herself in the night.
On the crying to sleep. My best advice is you actually need to go to her at night & help her go back to sleep, you need to be with her from the moment she crys until she is asleep, to re-build her trust in you. Look at the Pick up /Put down forum for advice on how to do that if you need to, but it may be she just needs you to go into her & give her a cuddle until she is calm & then she will go back to sleep... you might try sleeping on the floor in her room for a week or so to help & then gradually move yourself out of her room.
There is no magic quick fix solution & it will proabably take you a few weeks to get the wakings less frequent.
