>The spotlight effect is the phenomenon in which people tend to believe they are being noticed more than they really are. Being that one is constantly in the center of one's own world, an accurate evaluation of how much one is noticed by others is uncommon. The reason behind the spotlight effect comes from the innate tendency to forget that although one is the center of one's own world, one is not the center of everyone else's. This tendency is especially prominent when one does something atypical.
In other words, no one (save for your closest friends/family) cares more about you than you do. This is both terrifying but also extremely liberating.
Do you remember your friend's cringy rejection from 2 years ago? You probably can, but your friend might've mulled over it every day for the last 2 years.
Hope this helped.