Why ain't my iPhone's Wi-Fi not working?

My iPhone's Wi-Fi ain't working? I tried the Settings>General>Reset>Reset Networking thing and i turned it off and it still aint working! Please i need your help! Oh and i also tried restoring it but it still don't work! Please! (And yes.i'm desprite for your help)
So this is how it started, i came home from school and i had my 4G internet on and i turned off my Wi-Fi, and i came home and turned off my 4G and turned on Wi-Fi and when i went to my settings and to Wi-Fi. And the bar was grey and i was freaking out. So then later on i continued like it was no problem after i was done freaking out, and so my iphone was really slow… And then i was like WTF dude so over night i turned it off and found that if i let my phone die like not charge it then it would be OK after i turn it on and it would work! Well it turned out it was the same it wasn't working, so i restored it after, and now i'm on here asking for help! It's been like this for 4 days! And the thing is i don't want to tell my mum because its my second iPhone, because i dropped my first iPhone in the toilet, ( don't judge, i had to pee and it fell in the toilet!) So please i know this is the 3rd or 4th time but i need help!

So your Wi-Fi is working? That IS what your question says.

My wfi ain't working on my iPhone 4s

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