My iPhone 4 isn't connecting to my Wi-Fi?

I went for a holiday and when i came back home i tired to connect my iPhone to my Wi-Fi And it said no Wi-Fi after that it work one time for about seconds and went off

Just received a brend new iPhone in mail from a sender that i don't know him or her?

I received a brend new iPhone in mail. The case was opened but everything is in there. There's not even a scratch. The mail was sent from WA and i live in FL. I don't know anybody in WA. It had the senders name and address too. I don't know what to do with it. I like the phone but its kinda scary the whole situation. Any ideas? It had my name and address as the receivers

How much will it cost for an iPhone 4s?

I'm planning on buying a 16gb iPhone 4s for myself, but I'm curious as to how much it will cost for a 2 year plan and also the monthly cost if I want unlimited texting. Can someone help me out here?

Is it bad for a poor kid to have expensive things?

My parents are low-middle class but i always buy expensive clothes so i can look good and fit in with the other kids. I feel guilty doing this, but i just want to fit in. Almost everybody in my school has smartphones, so i bought an iphone. Need to fit in but i feel so guilty. I don't want to empty my parents' bank account.

Added (1). btw i beg for all the stuff, my parents didn't want to get it for me. I feel even more guilty.

Can I connect to my Wi-Fi without the need of a password?

At work the router doesn't have a password to access the internet. One of the workers asked me for my iPhone address, or something like that, and I saw him adding in numbers into the site of the router.
Can I do that too on my router at home?
It's Linksys btw.

What will happen if I reset my iPhone? - 2

My phone is not working correctly. My texts take over five minutes to send and none of my apps or games will open. I have only had this phone for a year. I have moved all of my pictures to my laptop and have all of my contacts written down. If I reset, will I just need to log into my account and be able to download all of my games again, or will resetting not help at all? Should I just get a new phone?