Can I get some jailbreak

Can I restore my iPhone 4S ios 7.0.4 jailbroken without connecting to iTunes. If I do this what will happen.

Why does my connection barely work at school?

At school me and my friends barely have connection on our iPhones. We usually have to use the wi-fi because our phones won't work. I don't mind using wi-fi because we found out the teacher wi-fi password but I want to know why my iPhone connection never works.

P.S. We all use Sprint just in case that had something to do with it.

How to make money to pay for iPhone?

So I'm going to get an iPhone 5s ( my moms is paying) but I have to pay the monthly bill which is $60 a month how can I save up money to afford that btw I'm 15

Iphone 4 won't download apps? - 1

So I'm thinking it's my Wi-Fi because after I moved my bed towards the window it's been a bit slower. Well I try to download apps to my Iphone 4 on the Wi-Fi and it just goes away and says can't be downloaded at this time and I tried a billion times and it still doesn't work. And my laptop lately its been saying no data found every now and then. And we have Dish Network which is supposed to be Really good but tbh in my opinion if this is what it does it sucks. Or could it be the router? And what should I do because I can't even get ANY apps on my phone now OR use iMessage because the wifis not working on it right. I've reset it TWICE and it still does it.

My iPhone 5 won't receive or send out messages?

I have an iPhone 5 I've had it for about a 1year and a half (just extra info if needed). Last night my friend was trying to send a normal message to me but I didn't get it at first I thought it was his phone but then I tried sending out messages to other people and they won't send I'm just getting the message failure sign but it is allowing iMessage and today I didn't have any 3G when I was off the wi-fi connection it just wasn't picking it up at all.
Does anyone know who to fix this?