This isn't necessarily my usual taste in genres, but I really like your writing style! Holding off on the reveal of the finger was a good call; I liked the surprise of realizing what the character is holding onto. I'm not sure I entirely understand this story, haha, but I enjoyed it!

I think it would be a bit more interesting if you held off the reveal of having a finger in the pocket of the main character. Perhaps use the improper noun “it” instead of “a finger”. Just something to think about. Also, good job with the repetition of the winning and losing, that added texture to the story. Well done!