I know how hard it is to lose a very close pet. My beloved Chihuahua, Fi-Fi, passed away in February. She was 10 years old. I still miss her so much, even now. You take care and no blaming yourself. I'm sure it wasn't your husbandry, you'd said you'd had your snake for a long time......so it probably was not anything you did. Unfortunately, when they're called back to the Rainbow Bridge, there's little that we can do. Time will help you heal and maybe a new little friend can also help to ease your pain. For some, getting another pet right away is good, but not always. If you feel you need the time, take it.