Quarter-life crisis?

At twenty-two-years-old, I think I am experiencing a quarter-life crisis. I feel like everyone is doing better than me and after changing my major three times, I still don't know what I want to do with my life. Then again, someone told me it sounds like I am trying to find the meaning of life. There is no definite meaning to life in a broad sense. It's different for everyone. I'm just trying to find my own calling. Although there are over six billion people on earth, we are all insignificant creatures. If we are so insignificant, doesn't it make sense for us to each pursue our own hopes and dreams? I think each human being is entitled to do so.