Can I regain information after erasing data using Find my iPhone?

As a joke, some kid set a passcode on my iPhone that I do not know. He apparently entered it wrong, because he was unable to unlock my phone after setting the unknown passcode. I'm absolutely livid. I now need to restore my phone because I can't get into it because no one knows the passcode. So I went to back it up, and it told my that it couldn't back up because there was a passcode. Okay. If I didn't have a passcode I wouldn't really need to back up, but okay, whatever, I just want my phone back. So I try to restore. Nope. "iPhone can't be restored because Find my iPhone is turned on. Please turn off Find my iPhone in settings on your device." BUT I CAN't UNLOCK MY DEVICE. Way to go, Apple. Thank you. Then I went to icloud.com to remove my device from Find my iPhone. Well, turns out I can't do that either without unlocking my device. Did Apple ever even consider the people who get locked out of their phones? This is beyond absurd. So now, the only thing to do seems like to do the "Remote Erase" on icloud.com.

TL;DR: My main question is, will I be able to get all my stuff back on my phone after erasing with Find my iPhone? Can I get any of it? More importantly, does erasing with Find my iPhone also erase the data from iCloud, or can I sync with that after erasing? I'm so distraught over the thought of losing all my apps and pictures.

Also, I can't take my phone to any Apple store or get any support from Apple because my phone is jailbroken.

My iphone 4 fell from the fifth floor?

I have Verizon and I guess I had icloud on if that helps. Is there any way I could move my memory to another phone? I heard that Verizon doesn't carry a sim card but I don't know. It turns on, like you could see different colors but the picture is broken and it's kinda mostly black. If I can't do the sim card thing can I still fix it?
My iphone 4 fell from the fifth floor

How to get an iphone 5 relpaced?

About a half hour ago my sister dropped her 16gb white iphone 5 into a lake near our house. The lake is about 50 feet deep of where she dropped it so it's useless. She got it last July and we have verizon but, no insurance. So can I get it replaced?

Where can I buy an Iphone 5?

Does anyone know where I can still purchase an Iphone 5 in canada or online? I prefer a trusted website aka not ebay.

Digital camera to replace my iphone?

Never bought a camera before, but was wandering how much something significantly better than an iphone 5s camera would cost?

I know iphone camera is only 8mp or something but it's got adaptive lighting which compensates so I still think it's better than most entry level point and shoots as far as I know

IPhone 4s service not working?

So my dad's old iPhone 4s has been sitting around for a while. My younger siblings updated it to IOS 7. Previously my dad had been using it with a T-Mobile Sim Card, but I don't know if the phone is factory unlocked or not. When I tried to put my own sim card in it the phone said "searching" in the corner, then it said "T-Mobile". It didn't lock up or anything like that. But when I try to text or use Wi-Fi the messages don't go through. Is it because the phone is locked? Or is it something else?