Terrorist Attacks from Osama's Followers? WWIII??! Don't know what to expect?

No idea dude... After Bin Laden's death, everyone's celebrating, but I'm just in a state of confusion... I'm practically in a trance and almost everything I say doesn't make sense, I'm so shocked he died... So I'm fourteen and I try to keep up with current events because I strive to be a politician one day you know? Well okay, but this thing about Osama Bin Laden- why the HELL is everybody celebrating?? His followers are probably pissed as ever before and are gonna retaliate!!! Like, soon!!! I'm so nervous- trying not to think about it but I just have this feeling... Do you know what I should expect? Do you think they're going to just do like suicide bombings and shootings, or like really nuke us or something.. I apologize I don't know much, but I really wanna know. Terrorists pretty much I'm positive have nuclear weapons, how could they not by now? I hear they hid one in Europe and some of my family lives in Britian so I'm mad nervous about that too... I don't know what to expect, what do you think is gonna happen?