How to take care of it properly?

I got my iPad about 2 months ago and as I'm new to it, I'm not sure how to take care of it properly. It's an iPad mini, by the way. I have faced some problems with this iPad so far. Sometimes it freezes, and sometimes it takes quite a long time to respond to my order. Well, I think the latter is because of wifi problem, but I've found out how to unfreeze my iPad when it freezes. I think these two are the basic problems I've faced with my iPad so far. And now, what I wanna know is how to take care of my iPad, example: how long I can use it continuously, how much warranty it has, what to and what not to do with my iPad. And do you think I should use - what's that called? We'll I don't know the name, but that sheet of paper which you use to protect the screen of your device? Should I use that on my iPad, even though it's retina display? And yeah, I have a cover for my iPad, and I use the assistance touch so that I can avoid using the home button much and prevent it from getting destroyed. I use my iPad for at least 8 hours a day, is this too much? One of my friend suggested me to not install iOS 8, because iOS 7 is better than iOS 8, is it true? Well my one's iOS 7. What app should I use to download songs? Please provide me as much info on iPad mini as much as you can. Thank you! :)
Added (1). Please ignore the mistakes which autocorrect has done!
Added (2). It was bought from Canada

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I don't want my own name to be shown when I send an email, how can I change this. I use an iPad?

I don't want my own name to be shown when I send an email, how can I change this. I use an iPad?

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App downloaded but is stuck on installing… After attempting to open it?

App downloaded but is stuck on installing… After attempting to open it?
Added (1). A friend of mine gave me a copy of an app he bought (so I wouldn't have to pay), but when I transfer it from mymacbook to my iPad, I click on it to open(after it downloads) but it stays stuck on installing…
This is after it completes the circular loading screen on the app itself (after I transferred it from my laptop). What is also strange is that after the load/installing circle finishes, the app has what appears to be a shade of black over it(unlike the other bright apps). Any advice?

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Help setting up a second wireless router?

I have a netgear router on the main floor. The Internet comes into it, a desktop is plugged in and I use it for my phone, iPad, etc. The signal in my basement is almost non existant. I have an older linksys wireless router that I want to set up in my basement. Can this be done? I need some detailed instruction.

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USPS priority mail. No updates for almost 48 hours?

I ordered an iPad off of amazon, seller shipped next day, and usps shows tracking to a hub near him in southern Florida. The was an arrival scan shortly after mid night on the 5. Now the 6th is almost over with and no departure scan or and updates. Any help would be nice.

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Does AppleCare cover broken screens on the iPad Air?

Does AppleCare cover broken screens on the iPad Air?

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Transferring games and apps from one iPad to another?

Is it possible to take one iPad that has fully purchased games such as 'The Walking Dead' and 'The Wolf Among Us' amongst other things like apps and transfer them all to a brand new iPad (without needing to buy them all again)?

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Which are the best best notebooks for programming?

Which are the best best notebooks for programming?
Added (1). i am cs student and need a notebook for mobility. It won't be my main computer as ill do most heavy work on my home pc. Therefore i am not interested in extremely high specs. What i want it to have though is extremely high quality screen. (my eyes tire pretty quickly on some notebook screens (f.e. Lenovo g 500 i got stuck with yesterday tired me after 3-4 h of use. And yes its screens fault because i can spend hours without rest on my 4k 27inch display and at iPad display).
Added (2). it should have high resolution, ppi, little to no glare, no backlight bleed, and its black should be very close to real black. As i said i dont really care about other specs. Even battery life not too important.

at this point i am thinking of a macbook since i love apple ipad screen and want to play with ios app development to learn more and I've heard while it can be done on windows its better on os x.Though I've never owned apple pc before and am accustomed to windows.
Added (3). (does os x lack anything major in programming that windows has?)
any suggestions appreciated. Please state your reasons for suggesting a model though.

also no real price limit.
also i can wait for a few months before buying so if something good is to come out soon please say so.

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Ipad mini photos taking a lot of space?

My ipad mini "photo library" is taking so much space but i only have about 70 photos and one video which was only a minute long in my ipad. I deleted them right after i backed it up into my computer. I need help to figure this out! Thank you!
Added (1). its taking up 10.6 GB but i dont knpow why exactly, i have icloud turned off

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How to get rid of ads?

I use my Ipad for internet browsing and one thing I love to do is watch movies/shows on it, but lately I found websites are infested with ads that make the page load slow, some don't let you see the page till you click something and they overall make the whole internet browsing experience a real nuisance.
My biggest problem right now is a delayed add that lets the page load for an indefinite amount of time (up to 12 minutes! It redirects in the middle of the video) and then redirects me to some cheap website.
If anything, is there a solution to this type of add?
Remember, this is on tablet, so there's no addblock or noscript.

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