That's how I felt too. I bought a dummy for Jude because he loves to comfort suckle and he sucks his fists, the paediatrician told me in hospital you can always take a dummy away but you can't take away thumbs, so we tried it. It helped to settle him last night (at last).
My DH wants to try and avoid dummies if possible. So at the moment we are trying to settle her without them. But I do have some ready to use - just in case!