I'm afraid to jailbreak my iPhone /: should I?

I'm afraid something will go wrong like my battery will die fast or my phone will juss stop working or something! What bad things happen to jail broken iPhones? I have the iPhone 4S! && also did I mention I don't even knoe how to jail break it? What else should I knoe?

You don't need to to that. Get a straight talk sim and save a few dollars. Use your phone as is.

First of all, people who tell you not to jailbreak, are people who have not done it and wildly overexaggerate how bad it is. Jailbreaking can have its bad effects. Such as battery drain faster, bricking your iphone, slower navigation. But this stuff will only happen if you don't use it right. When i say that, i mean not knowing what your doing after you jailbreak it. After you jailbreak your phone, you will acquire a new app called cydia. Cydia is basically an appstore but with endless options to customize your phone ANY way you want. (this is basically the whole reason to jailbreak) you will need to take caution when using it. If you figure out the basics of it all, its actually quite easy.
Lets say you want 5 icons on your dock, you just look for an app called "5 icon dock" and press intall and thats pretty much it.
I have i jailbroken phone and i can tell you its the greatest thing ever. It just makes regular iphones look so boring. Do it at your own risk, but i've helped at least six of my friends jailbreak their iphones and they have bad no problems whatsoever. You just gotta be smart with how you use cydia. Like research something before you intall it.

So yea. If you not convinced i'm telling you, you can customize ANYTHING like dock color, dock #, status bar, more rows, icons, rotations, system setting, shortcuts.
You can even turn your phone into an android if you wanted

Jailbreak voids your warranty and may mess up your iphone.