I used to spend time as a child thinking about whether others would like me, but there are probably plenty of people who generally don’t pay attention to us.
They’re probably concerned about what other people will think of them, but it doesn’t stop us worrying whether they will like us. Those who notice and judge are probably not the people we would want to be friends with anyway.
The problem stems from how we feel about ourselves and not necessarily from others judging us. They’ve probably not said anything or behaved inappropriately: but seeing them reinforces how we feel about ourselves.
I know that when we accept ourselves, we will perceive others more positively. Also, when we’re more accepting of ourselves, any negative thoughts about how others perceive us won’t exist.