Don't give up your A1200 board! It is repairable unless some Tank was driven over.
Try to contact "botfixer" at a1k.org (even in english), he will save your Amiga
I was having difficulty seeing what I was doing and I dropped a blob of solder across like 3 different surface mount parts instead of one I was trying to bridge. I was lucky because I was able to remove the solder with a suction iron without removing those components. Its working perfectly now. It did have this annoying issue were if the temperature in the room changed, and the screen used true white in the palette, the screen would flicker and glitch.
You are absolutely right about keeping patience. I know I struggle with that.