What's a better phone iPhone 5s or 6?

Ok so I have the 4s right now and I'm elligable to update my phone. My mom made a deal with me. I can either wait for Christmas for the iPhone 6 or I can buy the iPhone 5s now for only $94 with my own money. I just don't know which one is worth more to get. Which one should I get and which is better?

Which iPhone 6 storage should I get?

OK so I know I'd never use over 64GB so I definitely won't be getting the 128GB iPhone. However, I can't decide between the 64 and 16 GB phones.

I have about 5GB of music and I do like to take photos (I can store the photos on my computer though). Then I would also have some social apps (Facebook, Snapchat, Twitter etc.), as well as some other apps/games.

I already have a 32GB Nexus 7 of which I only use 10GB (17GB free space). I don't store any music on my tablet though.

What do you think?

I'm careless, I always break things and waste money and I never think! What can I do?

I'm a 15 year old guy and I'm so angry at myself! Now my family isn't exactly poor but they're hard working and know the value of money. I'm just so careless sometimes and I rush things and I'm stubborn as hell, a few years ago I broke my pair of £80 designer glasses, I lost a real silver religious necklace, I broke my flat screen TV, I broke a chest of drawers and a door off a wardrobe, I chipped the side of my brand new iPhone 5c and there's other stuff too. Oh and I broke 2 LAPTOPS AND A COMPUTER! (I was young and installed viruses etc.) just rush sometimes and I don't think before I act like today after school my friend came at me and threw water at me while I was waiting for my book so I rushed through my bag and got my water bottle to throw water back but when I got home I looked in it and my glasses were gone! I think I dropped them while getting the water and they cost £120! I feel so bad that is so much money! I'm going back there tomorrow morning to look but I don't think they are still gonna be there, I also wasted £250 on some stupid modelling pictures which was a huge mistake but I was just being stubborn. How can I stop doing things like this? I feel so ashamed and horrible and I keep overthinking me and how I waste so much money and that I'm good for nothing but breaking stuff!

Tell if this is earpiece or audio chip (ic) fault in iphone 5s?

I have iphone 5s & iphone 4, i have experienced that in call volume & ringer volume is little bit lower in 5s than 4,
in voice memo and video recording sound is aloud in music player sound is loud enough,
please tell where is issue in earpiece & ringer or in audio chip?