That band did not save your life. They just helped you realize you had the strength to do it yourself all along. Music is powerful thing and can change your life and can help you realize you're not alone and you're not worthless. But in the end, you're the one keeping yourself alive and you need to give yourself a bit of credit. There is no way I would be where I am today without my favorite bands, but it's because they helped me find it within myself to keep holding on.
“If you love a flower, don’t pick it up. Because if you pick it up it dies and ceases to be what you love. So if you love a flower, let it be. Love is not about possession. Love is about appreciation.” -Osho