halo effect
/ˈheɪləʊ/ ɪˈfɛkt/
The tendency for an impression created in one area to
influence opinion in another area.
I complained during the early-mid year of 2016 that this was one of the worst years I've ever gone through... only because I had such great expectations for it. It started so well, filled with so much potential, only to fall apart. My mind was so focused with the failures that I almost completely overlooked my accomplishments and my blessings. The negative halo effect, negativity in one small area and it cast a negative shade over everything else.