If you have any close relationships left, just "going missing" will be harder on them, but might be easier on you. If they care, they'll look for you, be unable to move on until they find you, and ultimately be left with all kinds of questions when they eventually do... because, let's face it, disappearing without a trace is damn near impossible in the modern world. You'd just be delaying the pain for a little while, during which time they'll waste time and money trying to find you, and be in pain worrying about the fact that you're probably dead.