(Not a Teacher)
1) "Having such (a) life is better than not living (at all)."
2) Your sentence is correct, but I have no idea what you mean by a song making you 'incredibly instinctual'.
3) Omit 'speak' and this sentence is perfect.
4) It's understandable, but allow to suggest something a bit more natural: "I loved your (latest) post on Facebook."
5) Nothing wrong with this sentence, though that's a rather terrible thing to say about someone.
Interested in Language