i cant get any excercise equipment. i also cant spend money on a program like airalert. what are the best ways besides these other methods?

I started using a pair of wrestling shoes. However, they give me really bad shin splints, and i jump on tiles… i know, its bad. So now im thinking of getting a pair of cross trainers are some good shoes for jump roping. Any suggestions guys?
Thanks!

Ok im 13 roughly 5’5 5’6 and 115 pounds in the 8th grade. I want to be able to touch the rim of a goal by the 9th grade. Dont say its impossible a dude that is my same height can touch the rim
Ok im 13 roughly 5’5 5’6 and 115 pounds in the 8th grade. I want to be able to touch the rim of a goal by the 9th grade. Dont say its impossible a dude that is my same height can touch the rim. I can barely touch the back board

how do i mesure my verticle jump i need some Ideas cuz i jump really high but i dont know any accurate test to do it