Many Problems With My Iphone?

Uuurrrgggg! I've had my iphone for about a year now but it as my moms long before i had it. It is still an iphone 4 and it is terrible! I'm still on ios 7. I jailbroke it and someohow managed to delete cydia without using cydia impactor. So all the cydia tweaks and jailbreaks i got were still on it but cydia no where to be found. Then my phone started charging only while it was off. People would say stuff like (plug it into itunes to reset it) and i'm like, if it only charges while its off how will i do that? Then my lock button jammed up so now the only way i can turn it on and off is by plugging it up. This phone is killing me! And its gonna be at least 3 more months before i get another one. What do i dooo?

Iphone 5 Music transfer from phone to computer?

I changed my lap top so lost all my stored Iphone music on it, now I would like to transfer the music on my iphone 5 to my current laptop and haven't a clue how to do it, can anyone help please.

Why do bad things always happen to me?

I feel like bad things always happen to me i had two phones and my mom smashed them both all my friends have pretty iPhone 6s and i have my iPod that fell and cracked recently i feel so left out and my mom pressues me about my grades all the time like if i get a C she thinks i'm lazy and when i had a phone she takes it away and she always yells at me about stuff everyone around me seems happy but me i wish i wasn't alive and i wish i was dead because that would be best for me nothing good ever happens in life for me always bad things and i try not to think that way but it still happens and i pray to god about it and he never really helps me at all i just can't stand my life