Macbook Air 13 A2337 black screen

Hi everyone, I have a macbook air 13" A2337 into which i spilled sweet coffee. I immediately turned it upside down after unplugging it. Long story short, I started using it again and it worked ok, except for some keys that were hard to press down. A week later the screen went black. The start in chime came up but could not get the display on. Finally I was able to connect it via an hdmi cable to my tv. I was able to see the log in screen on clamshell mode, but even plugging a cabled keyboard and mouse, i could not get either working. The top of the screen above my photo and the space for the login name says, Unlock to use accessories, and in the bottom I see the icons to shut down, restart or sleep. If I open the mac (raise the display) the TV screen shows only the background. Is there any way I can get into my mac and at least retrieve all info. I have tried target mode, but nothing, since it is a silicon m1, i have not been able to connect it to another mac.

I'd greatly appreciate any solutions you could spare.

Thanks in advance. Oh, the damaged mac is running Ventura.