i heard ppl said that skipping helps....but what kind of skipping? is it when you skip with a jumprope or is it jumping off the ground really fast?

NO
SPRINTS THE BEST SPORTS TO SPEED GROW:
you Will run for about five to seven minutes at my maximum sprinting pace, rest for about ten to fifteen minutes (I was so tired I was going to pass out, seriously) and run for another five minutes. The speed and intensity of the run is far more important than the amount of time you spend running, as I have learned the hard way. According to doctors and experts, the intensity of my training had enable me to produce about 400% more growth hormone than normal jogging would have offered. I believe the reason most people fail to grow with running is because they don't do it hard enough.

GOOD LUCK FOR YOU

No Ali, WEIGHT LIFTING is the best sport to grow.

Jump rope. it is also better if you add ankle weights to your legs when you do it

Try doing it atleast once a day for around 100 skips

WEIGHT LIFTING is not the best sport to grow, swimming is!