Nipple confusion!??

My baby is 10 weeks old exclusively breastfed, I’ve tried to give her a dummy on a three different occasions now and every time after she’s had it for a couple mins the next time we feed it’s like she doesn’t latch as strong and comes on and off my boob. I think her having one would be so helpful and she does like it but I’m too worried to carry on incase she forgets how to fed properly!? I see so many baby’s having dummy’s and bottles as well as breast feeding but I don’t think my little girl could do that😫