I assume that you're talking about a captive ball ring. The ball is probably just too loose. Just tighten the ring around the ball by squeezing the ring with pliers. Unless of course you have ring closers. Those are easier to use but pliers do in a pinch. If you don't tighten it, the worst that could happen is that the ball falls out and you lose it. If that happens, you could put a piece of eraser or clay in place of the ball for temporary use.
Yes
you should use a stud
When you get a rim piercing (through cartilage) both sides of the ear (and any jewelry) are visible, so you want something without a "wrong" side. Choose a small hoop with a ball closure, a labret stud, or a barbell with two decorative ends. Many styles are available, from fun and funky to don't-mess-with-me scary!
too tight
If you mean like a ring, you take the ball from between the two sides of the ring and set it somewhere safe. Then bend the hoop so it makes a spiral, then slide it in, bend it back, and put the ball back into place. Or if you're like me, which I don't recommend, drop the ball, lose it, and just bend the ring shut lol.
it depends if your playing mods or divisions
yes
It might. If you intend to keep a hoop in it, then it shouldn't affect it. If you intend to wear studs, you might have to bend them so as not to irritate the piercing though.
This is called hypertrophic scarring. It is caused by the jewellry putting pressure on the ear, and making scar tissue build up around the area of the piercing. You should soak it once or twice a day with salt water or tea tree oil in some warm water, and change the jewellry. If you have a hoop/curved jewellry you should chage to a straight, and if you have a straight chance to a curved, This changed the pressure on the piercing and allows it to go down. If you have an industrial piercing, you should put two separate pieces of jewellry in until the scarring has gone down. Try to avoid touching the piercing as much as possible.
Yes, the SKLZ Pro Mini Hoop includes a ball.
On many hoops, there is a catch; feel for it and slowly pull it out. Ease the hoop out through the hole.
First you throw the ball to one of your team-mates that are open. If they pass you the ball don't be afraid of the ball. If your near the hoop throw the ball into the hoop.