I'm so sorry. I know how devastating something like this can be. Even a small thing can push you over when you're fragile, but this was obviously a really big thing for you.
Sounds like you've had nothing but grief from your family, either, so you're bound to have problems keeping your head above water even at the best of times.
Please try not to hurt yourself again. Whatever has happened in your life, you don't deserve that.
Sending strength, compassion, and hugs.