Mental illness is illness. I believe that depression, and other mental illnesses, are diseases the same way that cancer or heart disease are diseases, and I believe that sometimes a person can lose their fight with mental illnessess the same way that people can lose their fight with physical illnesses.
Family is important, but sometimes the families that we are born into can be damaging to us, in various ways. Which is why good friends are so important. It is so important to have people in your life who make you feel heard. Friends who allow you to feel your feelings, even if they aren't good feelings. Friends who will sit with you when things get dark. Friends that you can tell hard things to. Friends that love you when you are falling apart. Friends that allow you to fall apart. It is also important to be this type of friend to your friends.
Sometimes things get dark, and that's okay. It's okay to acknowlege when things aren't good. It's okay to not be okay.