Things I have learned through DNA, and building family trees:
--your ancestors had to escape disease, war, accidents, and more. Basically, they Indiana Jones-ed life, or you wouldn't be here. Some families had one living survivor, and that survivor had one survivor, and now there is you. You are a miracle.
--all those "begats" in the Bible that you skipped over were kinda important. God was showing you His plan is not random, it is laid out for generations and generations. Before your great great grandparents were born, He knew your name. You're that special.
--life is fragile, and that "death date" I just typed in the box? Relative A was cruising through life when it came to an abrupt halt. You only have this moment.
You are a miracle, you're THAT special, and you only have this moment. So, why are you wasting life worrying, or acting like you're not enough? Go be who God made you to be, and quit believing the lie that your life has no purpose. There's a reason you are here. There's a reason you are who you are. You are God's workmanship. Ephesians 2:10 Workmanship (synonyms: creation, design, artwork!)