Is 5gb of data on iPhone 4S enough?

Here's what I want to do per day.

2-3 hrs of Facebook
10-15 you tube vids
Occasionally weather checks.
2-3 hrs of yahoo answers lol
And visit about 10-15 web pages mostly text.

How to put a cd on my iphone without itunes?

My dad won't let me download itunes on our computer because it's a really old computer and if we download itunes it will go even slower. Is there any other way to put a cd i boght on my iphone for music?

Do I need a screen replacement?

So, long story short, my iPhone fell in the toilet. Now, 5 months later, its starting to work…
When I press the home button or on/off button, the screen turns blue and if I press the off button again, it goes back to black. Next, the other day, it was sitting in the iHome dock when I realized that I received a text message. The headphone jack still works because if I plug in the Apple headphones and press play, the music plays. Vibration still works, it charges and everything. Do you think I just need a screen replacement?

I want to get an iPhone 5, but my contract isn't up?

I have an iPhone 4 right now and it's starting to act up really bad. When I'm listening to music, the volume fluctuates and it shuts down at completely random times. I'm also not receiving calls or text messages, even when I'm in an area with excellent service. There's also a massive chunk of "other" space clogging up the storage of my iPhone and I need to get one with a larger storage space for my large music library. I have restored my phone multiple times to attempt to solve issues, but nothing has changed. 16GB iPhone 5's are available for $200 with a contract, but my contract isn't up yet for my iPhone 4. I have been through a year with it. Can I still manage to get an iPhone 5 through AT&T?

Why my iPhone 4S goes flat on 19%?

Once it hits 19% it goes straight to 1% and switches off. Once I turn it back on it says it's still on 19% but continues to switch off