IPhone 5s connection problem?

I need an iPhone hardware expert on this question, some days ago I really messed up my 64GB iPhone 5s.
I was drunk and I was trying to break a stick using my leg and I hit my iPhone with the stick so it kind of got ''bent'' like a banana, the screen didn't smash but i was getting a screen full of code saying stuff like ''panic(cpu) error, no OS version set etc. I opened up the iPhone, took everything out and used a hammer to make it straight again and then I put everything back.
After that i started workig för like a day, but then I started experiencing porblems with my antenna, one second I have 5 bars connection and the next second I don't have any connection at all. So it's really messed up when I'm trying to call sometimes.
(Good to know: the motherboard was also bent just a little bit so I bent it back to normal again.)

So what I need help with is to understand what the hardware issue is (and hopefully how to fix it).

Why i need to replace my iphone battery every time it died?

Few months ago my iphone 5 was out of battery and when i try tried to turn it on the screen didn't move
I've tried everything to turn it on and nothing worked then i replace the battery and since then each time the battery died i need to replace it or to unplug it for a few minutes and then but it back and it will work.
Someone told me that something is wrong with the power management in the motherboard that when the battery died it doesn't allowed the battery to charge again
And when i charge it, it reach 100 but never show me fully charged icon
Till now no one knew what is wrong with it.
Please help what could be the problem
And please don't till me that i should reset it or upgrade it or change the cable

How to silence and turn off buzzer for e-mail on my iPhone?

How do I do that without turning off the buzzer for phone calls?

I don't want notified off my e-mail on my iPhone but of course I want my phone calls to ring or vibrate.

Thanks.

I do have silent ring tone and e-mails are on silent ring tones. Is that the reason why I can't turn off the buzzer for my e-mails on my iPhone?

Reset content and settings on iphone?

I know this has been asked a lot but i need to be sure before i do anything at all. All i want to know is the following. I have an iphone 4 and 5. Apple id is active on both devices. If i did a reset content and setting on the iphone 4, will it delete my profile on the iphone 5 as well or will it just clear all the data on the 4?

Internet with internet card?

I would like to use USB connect threw my iphone but nothing is showing up do I have to have a network card in computer to use USB or have a wired connection