Ouch. I joined the needle club back in '69 when my mom let me use her 1940's Singer for a school project. I sewed my whole finger to the project and didn't realize it until I pulled the project out from under the needle and couldn't get it off my hand. I had sewn down the side of my finger just inside the skin (no blood thankfully). Then in 2000, my DD introduced me to the rotary cutter; joined that accident club within 10 minutes of holding the thing. I shaved the side of my hand from thumb to fingernail in 3 seconds. DD said not to do that again. Took me 3 months before I picked the rotary cutter up again to use. Now it is my faithful companion. I just have to live and learn mostly the hard way.
Hope you feel better.