Dropped IPhone in water, USB Device not recognized?

I dropped my phone in a puddle last night. It sat in there for a good 15 seconds.

This morning the speakers would not work but after shutting the phone on and off a few times they started working again,

When I plug my phone into the wall charger it charges.

But when I plug it into my cars head unit, it doesn't even recognize it as a device.

When I plug it into my laptop it says the device has malfunctioned and the device is not recognized.

Any possible way to fix this?
Any chance it will get better on its own in a few days?
And any way I can sync my iphone a secondary way?

When you change your twitter name does it sign you out from the iPhone app?

My mom took away my ipod and computer and I changed my twitter name during so she doesn't read every one of my tweets (she probably saw a lot of them already). I know that when you change your username if signs you out of the computer, but does it sign you out of the iPhone/iPod app too?

(I can't even delete the twitter app or sign out on my ipod because I don't know where she put it)

Wi-Fi texting on the iPhone 5?

What's the difference between the blue and green backgrounds on texting. If the blue means I'm connected to Wi-Fi, does that mean I won't be charged for texts I send out?

I have to pay 15c per text message on my Verizon plan.

Why can't I sign in on my YouTube app on my iPhone?

It's the original YouTube app that was already in the phone. I never updated my phone to the iOS 6.so i don't know if I'll get much help since everyone and their mothers has the iOS 6 software and a different yt app.
It signed me out for no reason and now I can't sign back in.Am I supposed to use my yt username or my gmail username without "@gmail.com" or with it? Even though I've tried everything & I know I'm writing the right password.

If i plug in my iphone to the computer and update, will it become bricked?

My iphone 4 does not have service anymore. I haven't updated in a while because I didn't want to lose the original youtube app. Someone told me if I plug in the phone to iTunes and try to update, my phone will become "bricked" because something relating to the sim card. What can I do to prevent my phone getting bricked?

Which iPhone 5 should I get 32 or 64 gb?

I have an iPhone 4 16gb I don't like it
I wanna upgrade but don't how much space
Here's the list of things I have to put on my iPhone
326 Albums 1226 songs and counting
Over 2, 000 photos and counting
Don't use to much for gaming I have a tablet for that (only a couple)
Social apps and radio apps
Any help