Dropped my iphone in he toilet now it's in rice?

So I dropped my iphone in the toilet 2 nights ago and I immediately put it in a bag of rice. I know that you're suppose to turn off the phone first but I couldn't because my screen wasn't working and I couldn't turn it off. At first the screen stayed on for a couple hours then it turned off. It's been like that ever since in the rice the whole time and it won't turn back on. Does this mean it's done? Or is there anything I can do please help

How to block calls but still be able to text?

Id like to be able to text someone but I do not want to speak to them on the phone so is there a way to keep the calls off but still allow texting? I have the iPhone 6s right now

Is it my ears or my earbuds?

I use the Apple "EarPods" that come with every iPhone and stuff, and recently I've encountered a problem with them. Every time I use them, I have to adjust the slider in my phone to raise the volume in the right and lower it in the left, and I can't tell if it's my ears or the earbuds. I wanna say it's me and go to an ENT but at the same time I use Skullcandy Hesh 2s to play along to music when I play the drums and I don't have this problem. The other thing is the earbuds are really loud when I take them out but get way quieter when I put them in. If you made it this far I'm sorry for the really long read.