How can Get rid of iOS 6.0.2?

I recently downloaded the new update for my I5. Even thought I read a lot of bad reviews I still downloaded it. I'm glad apple that you tried to fix the wifi bug but in doing that u created yet another problem. Now I'm not sure if its all part of your scheme or anything. But now I just can't enjoy my phone the way I liked to I'm always worried when my phone is Hohn to die. I never really need the download anyways,, because I never used the wifi.now I hope this problem can be fix and soon. Please