Apply for as many jobs as you can. Target roles that are above your qualification. Go to the interviews that scare you. You will gain so much confidence from that experiece that you'll naturally become a better candidate. This is one of the things that job hunting taught me.
Some people in your life have never seen you at your full capacity. They met you in a hard season, a transitional moment, a version of you still being built. Do not let their limited experience of you become your ceiling. You are more than the chapter they witnessed.