Life Sucks
and then you die
Well, I'm 30, and started to get more into death metal at 13/14. The first stepping stone was Slayer, then Sepultura (who were still good at the time), and then onto Napalm Death, Entombed, Pestilience, Dismember, etc. leading to many more obscure bands. Some of the first death metal albums I truly enjoyed were Pestilence - Testimony of the Ancients, Entonbed - Clandestine, Dismember - Like an Everflowing Stream, Amorphis - The Karelian Isthmus. Mind you, this was many many years ago, in the early 90s.