These are my jumping physics that you can use :) This probably won't work on platformers :( only geometry dash style games ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Note that this works no matter how high you want to jump, just see inside and change the part which i commented on to your style :)
I created these jumping physics so that y'all can use them :). Credit @pranav_skanda for them :D