Can I repair water damage to my screen?

Hi. 2 weeks ago my daughter dropped my phone in a bucket of water. I, immediately removed the battery and placed it in rice for 24 hrs. Whether that made a difference or not is clearly debatable, but my phone does turn on. I can hear a million notifications as soon as I turn it on, but the screen will not come on. Is there anything I can do to fix this?

If the screen is shot, would replacing the screen be an affordable option that I, myself, could do or would I need to bring it somewhere to be replaced. I think I paid $150 for it so, of course I wouldn't want to spend more fixing it than replacing it.

If there's any tricks to fixing this issue, I'd be very geateful for your suggestions.