dude chill out and enjoy the phone.
most likely you'll shatter it or get bored with it and get a new one before it breaks on it's own or stops receiving iOS updates.
it's a great device just like u heard above and it will last for years.
PS : Since 2007 I bought every new iPhone every year. Top model. Top tier.
...but for the first time this cycle I skipped the 7 Plus.
I truly believe that the 6s Plus is one of Apple's best phones and it's still a king even with the 7 Plus on the market.
I don't use a case, it looks like ****. Dropped it tens of times, still going strong.
Also this is the launch day model, battery is at 333 cycles, 77.5% health.
I'll upgrade this fall tho, that OLED iPhone [8, X, Edition, whatever] will be awesome.