[Certain]

You're a lot better than this when you write in your normal style, but I both understand the temptation to try something new and appreciate the desire to elevate. Your rhymes here were very forced, and the broken grammar in parts (using adverbial forms "viciously" and "amibitously" as adjectives stood out) really made that obvious. Plus, many of the rhymes were hard slants that didn't really work, at least not with an American accent. The parts where you weren't rhyming were substantially better than the parts where you were because of how much you were forcing those rhymes. A lot of this almost seemed like a bad parody of what some Open Mic writers seem like, particularly the last line with the Nirvana, Fight Club and whiskey references all in one. In the middle of a really good verse, that line might actually have worked. But it would have been cliche even then. Here it felt way out of place, particularly as a closer. Do yourself. This wasn't that.