You survived, and you’re sad. It’s easy to think that you’re sad because you survived, but that’s not quite true. It’s not like you don’t have better reasons to be sad, smarter reasons. You’re sad because others have died, and you’re sad for those that still suffer, and you’re sad because of how little has been achieved despite those great costs. It’s easy to feel the sadness, but it shouldn’t be confused with, or turned to, guilt – and unless you’ve actually done something bad – it’s both stupid and useless to do so.
You are not debris.