There are too many posts about how to handle a phone that's been dunked. But here goes.
Here's Rossman debunking the rice method. https://www.youtube.com/watch?v=yPeITOz2_YM
Yes there are four letter words but there is the "proper thing to do." Most folk can't do this work.
Get help. Stop listening to the Internet myths.
I've dropped my phone in the toilet and the I couldn't get the battery out for 10-15 minutes it doesn't work now. What should I do?