We’ll just all assume that every person who gets this would make themselves early twenties with flawless skin, perfect organs, appendages and functionality, and no excess weight.
My question is, would you change yourself from your genetic baseline, and if so, how?
I would dial the clock back 35 years and fix my teeth. A tail would be nice too and a sot pelt and maybe cat ears to go with the tail.
Honestly, just go the full 9 lives and become a cat.