Every, here's an important reminder:
You matter, you may not see it but you matter to someone, you are important and you are loved. You may not see it right now but you are loved. You may not know it, but someone out there cares for you. You are a light in the darkness to someone.
Treasure those who you love and who love you, always look after yourself and your friends and family, not necessarily your birth family but the people you choose to be family.
Be caring and kind, look after those who matter and remember that you are important too, don't hurt yourself with thoughts that harm you or anything worse than thoughts. Look after yourself.