From what I have heard, Sugar Gliders need a long time to Bond with new owners....
I am far from an expert, but I would say, keep doin what yer doing. I know alot of the sites recommend one of those critter bouches, but If where you have her pouched is already warm and safe, you should be ok... She needs to ffel snug.
I am hoping someone with a little more experience will be here to rescue you soon! LOL