Hi
Two things you can do:
1. Slowly wean the swaddle and see if she will sleep without it. First try letting one arm out for a few days or a week then let the other arm out after that.
or
2. Try the Aussie swaddle. There's instructions with picture at the top of this forum. I found that if you have a large enough sheet, then it is very hard for babies to get out of them.
Just to let you know, I swaddled dd with the Aussie till she was about 6-7 mos. Now I just loosely wrap her torso with soft blanket as she is so used to it being part of the sleep routine. Good luck.