I recently discovered a bright spot (a spot that is brighter then the rest of the screen) on my New 3DS's Touchscreen,
Any advice on how to fix this myself. My warranty is already up and I've recently installed Luma3DS as well... so I'd rather not have to uninstall Luma and pay to have it fixed (this would also take way too much time)

Are there any useful techniques or is there a decent homebrew app I can use (or have someone create) to fix it?

I've been trying to run a StuckPixelFix (https://gbatemp.net/threads/request-pixel-fixing-homebrew.403466/) on my system but since there isn't full color on the Touchscreen, I'm not sure if it will work no matter how long I use it (even if it did, I don't know if it would work anyway)

I've included two screenshots below. The bright spot can be hard to see on some monitors compared to others, so I included a slightly altered image to make it a bit more noticeable. (Note that this mainly shows up over bright colors such as White, it never shows when the screen has a very dark color such as black)

Edit: I'd rather not have to take the system apart, as I could easily screw something up if I attempted to fix it myself.

 

I was worried you were going to say that... How easy (and risky) would it be to replace the screen myself? assuming that I have the necessary tools to do so.
And wow, you replied pretty quick.

 

Has it been hardmodded? Pressure on the screen can cause bright spots, but it looks like something hit your screen.

 

Amazon. I buy mine from there and they haven't failed me

 

It's cool. If you need any help just follow me and send me a pm whenever. I'll link a few screens which you can buy and trust they work