no display after minor water damage

Hey guys. So a few hours ago I spilled a small amount of water on my MacBook. I had the bottom case open as I was replacing the hard drive and had previously had issues installing macOS so I didn’t want to put it all back together until it was all up and running. A little bit of water must have splashed onto the board when I picked up my cup as I had no idea it was there until I returned back and saw the water. I was gone for about 5 minutes, and the MacBook was plugged in that entire time. When I returned I immediately unplugged the laptop, but there was a decent amount of corrosion visible. Luckily the water was contained in the pictured area. I also included a picture of the entire board if that helps. I dried up the water with Q-tips and removed the board to verify there was no liquid underneath. Luckily, there wasn’t. I cleaned the area with alcohol but to no avail. Somebody on another thread suggested I put some flux there and reflow the area, but the same issue persisted. I’ve been dabbling into microsoldering but I’m absolute trash right now, so anything would help. This mac isn’t worth sending off to get professionally fixed so I might as well try and fix it. Worst case scenario it ends up in my e-waste pile. I’m pretty good at general repair, but soldering is foreign to me. Right now as it stands the fan goes to max speed, and you can see the sleep LED illuminated but no chime or display. Any and all help is appreciated! Thank you all! :)

(P.S I’m on mobile right now, so ignore any typos or errors. Thanks)