Why doesn't my iPhone 4 charge when it's on?

Ok, so when I turn my phone off, while plugged in, it will charge but I can't get on it. Every NOW AND THEN when it is on it may charge. Does anyone know how to fix this so I can keep it charging consistantly?

Why does my laptop get such bad internet download speed while my Iphone gets 10 times more?

My router is downstairs connected to a Windows vista PC. That PC connected with an ethernet cable gets around 90-100Mbs download speed. I did another speed test on my iphone upstairs next to my laptop, and it got 80-90 Mbs. But When I did the speed test on my laptop, it was only 10Mbs down. It's really annoying because it takes like a billion years to open youtube and everything lags.

Why does my iPhone keeping saying I have low storage and 0 bytes?

I keep getting a notification on my iPhone 6 saying I have no storage so I click on the settings option it supplies. When I go onto that it said I have 0 bytes left.

I then thought I would delete a couple of bigger apps such as YouTube and a few more. My next step was to delete half of my photos so now I'm only left with 400. I deleted unnessesarry messages and mail I had. But after doing all of this it still says I have 0 BYTES LEFT!

I've only bought a couple of songs off of iTunes.

It's so frustrating because it keeps crashing my apps and causing them to not work properly. I'm having to constantly restart my phone and even after that sometimes it still don't work. When I'm texting someone the messages start scrabbling up and sometimes vanishing. WHAT SHOULD I DO?!

Can I make myself sleeptalk more?

I'm really into dream recall but lately I haven't recalled my dreams even though I tell myself throughout the day to remember my dreams.
I have the full version of dreamtalk Recorder on my Iphone. Sometimes I sleeptalk, but I don't seem to say much lately either. I was wondering if there's a way to train myself to sleeptalk more often. I know that other people who use the ap speak out loud a lot, and if i was to speak out loud when I dream, it would help me to remember the dream when I heard the recording back.

My iPhone doesn't connect to the internet anymore?

My iPhone 6s doesn't connect to the internet anymore, nothing works, I've tried both 3g and Wi-Fi and they both proved use less. My Wi-Fi works perfectly fine btw. I've tried everything and i think I've ran out of options. I tried reseting network settings, hard resetting my iPhone, forgetting network, and yes updating my iPhone, (through my mac), but still nothing works! Will i be forced to erase everything off of my iPhone? There aren't any "apple stores" in Jordan so i don't know where to go. There are some iPhone stores but i don't know if i can trust them. What do i do?!