Dropped iPhone 12 in water now it won't charge.

I dropped my iPhone 12 in the pool and continued swimming without putting it in anything for about an hour or 2, I had gone inside and put it in rice about 20 minutes after I got out of the pool and it was on 1%. after about 30m -1hour I charged it because it was. dead and then It turned-on and got the water detected notification, after that override button hadn't been working so I put it in rice then after about 20 minutes I charged it for about an hour and 30 minutes. I came back upstairs to check on my phone and it was at 18% and stopped charging because of water detected notification, so I had just stayed on my phone until it died and tried to charge it once it died but it wouldn't charge or show the battery thing while dead so I put it in rice overnight and tried to charge it in the morning and it wouldn't show the battery sign or charge. What do I do?