I have a cheap fiskars 45mm. It can cut you guarded if you bump it wrong. My kids (16 to 10) are not even allowed to touch it. I am careful to always guard it after each cut. But, I cut myself washing dishes (glass broke with my hand in it) and can't sew. It has taken almost four weeks to be able to type. My skin is healed, but I cut something off my knuckle inside (cartilage?) and am looking at four to six more weeks. I have sensation and dexterity, but using my hand makes it hurt inside. If I'd cut myself quilting, I'd feel better about not being able to quilt!! argh . . .
Terrible about your carpet . . . On clothes, peroxide will (help) remove blood. Sweet of your daughter to try to clean it for you!
Good luck!