The other day, my best friend pierced my ear five times, yes in the same ear. Last night, my mom and I were changing the earrings, because the orginals were cheap, and my second cartridge closed within 15 minutes. My top cartridge still has a cheap earring in because I'm afraid to take it out... What should I do? Also my third piecing down is a little closer to the side then I thought and now it throbs. I clean it & everything but I'm worried that it's being so close to the side of my ear will make something happen. I need advice.

When you get a piercing professionally done they use sterile equipment and usually surgical steal for jewelry. It's so you don't have to change the piercing until you're allowed to because they can close up almost instantly. Ear piercings take 6 weeks to heal, you changed them far too early. Definitely keep them clean because you just increased the risk of infection. Also you probably should have waited in between piercings, the throbbing is because your ear is irritated.