B.R.
I know how you feel... the longer you wait the harder it will be to break the habit. The best way to do it is gradually. Let her sleep with one arm out until she is okay with that. Then loose the swaddler. It will probably be rough for a night or two, but putting it off will only make it harder later. And my Izzy, who was totally reliant on the swaddler, is now the best sleeper ever- she goes to sleep completely on her own and meerly LETS me rock her for a few minutes.