I finally thought of a good reason not to commit sudoku! If reincarnation is real and you killed yourself a decade ago, you'd be 10 years old now and still in this shit world but now things are even worse and you'd have far less knowledge. You'd probably be logged into google and every social media site right now with your real identity because you wouldn't know any better, and would only know how to use smartphones. You most likely wouldn't be white anymore and would have even lower testosterone, or if you're reborn a girl all the boys around you will be very unattractive due to their low testosterone, and if you fall in love with a good one a few years older than you he'll be imprisoned and beaten/tortured for decades because apparently you were getting "statutory-raped".
Things will probably be even worse a decade from now but at least you'll have lots of knowledge and big muscles to help navigate and overcome it if you don't erase all that progress by killing yourself!