IOS 6 Slows down my iPhone 4 Tremendously?

I upgraded to iOS 6, and I swear it took over 20 seconds to open the camera app, I know because I timed it! Everything is so slow and laggy. Wait that's not true, sometimes it loads at lightning speeds, and other times, with no apps running it still can take 10+ seconds to load. Loading the Appstore or the music app literally take ages, and I noticed loading messages app is much slower, it can lag for as little as 1 second before showing the messages. 1 second doesn't sound like a lot, but it is when it used to load almost instantly… It's just been really slow. So my question is… Will iOS 6 for the iPhone 4 be like how iOS 4 was for the 3G?

Tmobile sim card can't be recognized in iPhone?

I jailbroke and unlocked my iPhone 3GS locked to AT&T, but I'm wanting it to work with tmobile. I put the sim card in but it doesn't get service still. The sim card has a data plan and everything. The sim card is at least 6 years old. Do I need a new one? Or how do I make the tmobile sim care work? I used redsn0w to jailbreak it.

IPhone camera won't work at night?

Whenever I try to take pictures with my iPhone when it's night time or there's no light in a room, I put the flash on and take the picture and the picture shows no subject, just blueness. And if the flash is off you don't see anyhing but darkness in the picture. I've tried apps and I don't want one because all my friends cameras work and they have the same phone as me! I don't know if I have to change settings or what? There's nothing covering the camera and it's not like me shaking the phone so it comes out blue so please help! I wanna take normal pictures at night!

How to fix the volume on my iPhone?

Well, I plugged in headphones to my iPhone like 2/3 days ago and then I pulled out the headphones and ever since then, you can't hear any sound on games, apps, etc. You can only hear sounds when you have the headphones plugged in. Anyone have any idea how I could fix it?

Can a minor sign off for a fed ex package?

I'm 14 years old and my iphone will be coming in the mail from fed ex a couple of days from now. My parents have work and told me to sign it when the fed ex people arrive. Will I be able to sign off for the package since it is over $200. Plus, it will be in my parents name since they pay the bill.

Certified pre-owned, or new?

So i'm going to get an iphone 4s. But i don't want to pay $200 for it. So i saw you can get a 'Certified Pre-Owned" one rather than a new one for $150. And it fits in my budget. But the problem is my mom made it seem horrible, because of the thought of it being "refurbished'. But i've looked at reviews and people have given good ratings, and i read that its professionally inspected and even 'Re-manufactured' if any thing's broken or defected.someone please help me and tell if it getting a pre-owned one is worse than buying the new one, and please don't be mean, thank you.