Take your time at first, pay attention to the gap between jumping and rest, and then gradually increase the number of times as time goes by. Just stick to a certain value every day.
Skipping rope is not difficult, mainly because you insist. Don't forget to massage the muscles of your calf after jumping, or the meat on your leg will be hard and ugly.
I suggest you jump up to 2000 times a day, and you should allocate the number of times and rest time in a planned way. Pay attention to hydration between exercises ~