My 1996 Jeep Grand Cherokee Laredo Story How I got it to pass emissions!!

Hello everyone this is my little story about how I got my 1996 Jeep Grand Cherokee Laredo to pass emissions the struggle I went threw trying new things and all I kept getting was failed, failed, failed tried the garntee pass emissions didn't help. Tried catalytic converter cleaner didn't help. Tried the Laquar thinner thing I saw on YouTube that didn't work. Even tried injector cleaner. 8 times and after what I had to do 9th time.....