FYI..here's s an example of someone who didn't fit in HS:
Bill Gates, the billionaire who started Microsoft....was not popular at all in high school. He was considered a nerd. It surely didn't stop him from success.
When you look at some biographies of famous celebs, corporate officers, inventors - they more often than not weren't popular in high school.
What should you do? Perhaps look toward self-acceptance and put aside your concept of the importance of popularity as a goal to reach for. Happiness comes from within. Strive to make and retain one or two good friends. Be there for them and vice versa. Quality and not quantity matters most.