Are you Asian? Is there an effect, and are the vocals recorded on a single track or two layers? You really should've read the real lyrics. Out of the three different vocal styles here I can tell you should use the Hatebreederish one with unclear black metalish high pitch screaming, you're good with that style. You should try making a cover of Bed of Razors or Downfall. It's rare to find vocal covers in this music style that don't annoy the fuck out of you. Stay inside high pitch unclear vocals is my tip.